% CST8207 Assignment 03 -- working with files: PS1, find, mkdir, mv, cp % Ian! D. Allen -- -- [www.idallen.com] % Fall 2015 - September to December 2015 - Updated 2015-10-04 11:02 EDT - [Course Home Page] - [Course Outline] - [All Weeks] - [Plain Text] Due Date and Deliverables ========================= > **Do not print this assignment on paper!** > > - On paper, you will miss updates, corrections, and hints added to the > online version. > - On paper, you cannot follow any of the [hyperlink URLs] that lead you > to hints and course notes relevant to answering a question. > - On paper, scrolling text boxes will be cut off and not print properly. - **Due Date**: `10h00 (10am) Monday October 5, 2015 (start of Week 5)` - You have two weeks to do this assignment because you need to do two worksheets first. Do the worksheets first. - Your next assignment will be available in a few days and will overlap this assignment. Start work on this now! Don't delay! - Late assignments or wrong file names may not be marked. Please be accurate and punctual. - **Available online** - Version 1 -- 06:30 September 20, 2015 - Version 2 -- 15:10 September 29, 2015 -- fix typo in section 4.4 - Version 3 -- 11:05 October 4, 2015 -- add more hints to 4.10 - **Prerequisites** - All [Class Notes][hyperlink URLs] since the beginning of term. - All your previous [Assignments]. - Work in [Worksheet #02 PDF] and [Worksheet #03 PDF]. - An ability to **READ ALL THE WORDS** to work effectively. - **Deliverables** 1. One plain text file uploaded to Blackboard according to the steps in the [Checking Program] section below. 2. Using [Remote Login] to connect to the [Course Linux Server] (**CLS**), use simple commands in [The Unix/Linux Shell] to create some files and directories in your account on the CLS. **Do not delete any assignment work from the CLS until after the term is over!** Purpose of this Assignment ========================== > **Do not print this assignment on paper!** On paper, you cannot follow any > of the hyperlink URLs that lead you to hints and course notes relevant to > answering a question. This assignment is based on your weekly [Class Notes][All Weeks]. 1. Use commands learned in [Worksheet #02 PDF] and [Worksheet #03 PDF]. 2. Work with absolute and relative [Pathnames]. Remember to **READ ALL THE WORDS** to work effectively and not waste time. Introduction and Overview ========================= This is an overview of how you are expected to complete this assignment. Read all the words before you start working. For full marks, follow these directions exactly. 1. Complete the **Tasks** listed below. 2. Verify your own work before running the **Checking Program**. 3. Run the **Checking Program** to help you find errors. 4. Submit the output of the **Checking Program** to Blackboard before the due date. 5. **READ ALL THE WORDS** to work effectively and not waste time. You will create file system structure in your CLS home directory containing various directories and files. You can use the **Checking Program** to check your work as you do the tasks. You can check your work with the **Checking Program** as often as you like before you submit your final mark. **Some task sections below require you to finish the whole section before running the *Checking Program*; you may not always be able to run the *Checking Program* successfully after every single task step.** When you are finished the tasks, leave the files and directories in place on the CLS as part of your deliverables. **Do not delete any assignment work until after the term is over!** Assignments may be re-marked at any time on the CLS; you must have your term work available on the CLS right until term end. > Since I also do manual marking of student assignments, your final mark may > not be the same as the mark submitted using the current version of the > **Checking Program**. I do not guarantee that any version of the **Checking > Program** will find all the errors in your work. Complete your assignments > according to the specifications, not according to the incomplete set of the > mistakes detected by the **Checking Program**. The Source Directory -------------------- All references to the "Source Directory" below are to the CLS directory `~idallen/cst8207/15f/assignment03/` and that name starts with a *tilde* character `~` followed by a user name with no intervening slash. The leading tilde indicates to the shell that the pathname starts with the HOME directory of the account `idallen` (seven letters). You do not have permission to list the names of all the files in the Source Directory, but you can access any files whose names you already know. Tasks ===== - Do the following tasks in order, from top to bottom. - These tasks must be done in your account on the [Course Linux Server]. - **READ ALL THE WORDS!** and do not skip steps. - Run the **Checking Program** to grade your work, then upload the file containing the output of the **Checking Program** to Blackboard. - Your instructor will also mark on the due date the work you do in your account on the CLS. Leave all your work on the CLS and do not modify it. - **Do not delete any assignment work from the CLS until after the course is over.** Do Worksheet 2 and Worksheet 3 ------------------------------ These worksheets prepare you to do the rest of the tasks listed below by executing commands via [Remote Login] to the [Course Linux Server]. Failure to complete the worksheets will make the rest of this assignment very difficult. Do the worksheets first! You can download Libre Office (or Open Office) for Windows to edit the Worksheet `*.odt` files and save your answers. (Or you can print the PDF and write your answers on paper.) Do *not* use MSWord; it will mangle the format of the worksheet. Record and save all your worksheet answers for study and quizzes! 1. Do a [Remote Login] to the [Course Linux Server] (**CLS**). **All work in this assignment must be done on the CLS.** 2. Use LibreOffice or OpenOffice to open, complete, and save: [Worksheet #02 ODT] - Do not use MSWord to open this file; it damages the file. - You must read the week's [Class Notes][All Weeks] before you do the worksheet. - You will find it easier to write over the red underscores using "OVERWRITE" typing mode instead of the default "INSERT" mode. - Another way to fill in answers is to double-click to select the entire line of underscores and then simply type or paste to replace it. - Record and save all your worksheet answers for study and quizzes! - **Read All The Words** 3. Use LibreOffice or OpenOffice to open, complete, and save: [Worksheet #03 ODT] - See the notes above for the previous worksheet. Failure to complete the worksheets will make the rest of this assignment very difficult. Do the worksheets first! Set your `PS1` Shell Prompt --------------------------- 1. Using the `PS1` variable syntax shown in Section 2 of [Worksheet #02 HTML], set your prompt to include your user name, your computer name, and the **basename** of your current working directory. (See the definition of **basename** in the [Pathnames] class notes.) - Your prompt should look similar to this:   `[abcd0001@idallen-ubuntu ~]$` Set your `PS1` prompt every time you log in to the CLS, so that the prompt changes to tell you you the **basename** of your current working directory. This is faster than typing `pwd` all the time! You will learn later how to create a `.bashrc` file to make this happen automatically every time you log in to the CLS. > **Bonus Feature:** If you use `\w` instead of `\W` in the `PS1` prompt > string, the shell will display the full absolute path of your current > working directory instead of just the basename. You may or may not like > this feature; it doesn't leave much room on the command line to type > commands without having the command line wrap around to the next line. You > choose. Set Up -- The Base Directory on the CLS --------------------------------------- > As mentioned in [List of Commands You Should Know], you must keep a list of > command names used each week and write down what each command does. Without > that list to remind you of what command names to use, you will find > assignments very difficult. 1. Create the following directory structure in your CLS personal HOME directory and record (for study purposes) the series of Unix commands you used to create it. Spelling and capitalization must be exactly as shown: a. Create the `CST8207-15F` directory in your CLS HOME directory. b. Create the `Assignments` directory in the `CST8207-15F` directory. c. Create the `assignment03` directory in the `Assignments` directory. > **Hint:** You can create the entire directory tree above using *one* single > command with one option and one pathname argument, as you did at the end of > Section 4 in [Worksheet #02 HTML]. System administrators like to work > efficiently -- they learn how to do things quickly. 2. Check the structure of this directory tree by making your HOME directory your current directory and using one of these `tree` commands below. *Try both command lines below and use the command that gives the best-looking output in your terminal.* $ tree CST8207-15F $ tree -A CST8207-15F The correct output will look similar to the ASCII tree diagram below. The spelling and capitalization must be *exactly* as shown. CST8207-15F `-- Assignments `-- assignment03 **This `assignment03` directory is called the [Base Directory] for most pathnames in this assignment. Store your files and answers in this [Base Directory], not in your HOME directory or anywhere else.** Run the [Checking Program] to verify your work so far. Using a relative pathname ------------------------- 1. Make the `Assignments` directory that you created above your current directory. 2. Run the command that shows the current date and time. One line should display on your screen that looks similar to this: Fri Sep 18 16:38:37 EDT 2015 ### `date.txt` 3. Redo the previous command, and this time redirect the output of the command into the file `date.txt` in the current directory (just as you did in [Assignment #02]). **Hint:** Recall that you can redirect into a file any output that appears on your screen. You did this using the `date` command to create the file `date.txt` in [Assignment #02]. 4. Move the `date.txt` file from the current directory (`Assignments`) into your [Base Directory] using the shortest relative pathname to do so. (You did work similar to this in Section 4 of [Worksheet #03 ODT].) 5. Use a command that shows file names to confirm that there are no files left in the current directory. (You will only see the directory basename of the [Base Directory] in the current directory.) Run the [Checking Program] to verify your work so far. Using `find` to list all the pathnames -------------------------------------- 1. Make the `CST8207-15F` directory that you created above your current directory. **Hint:** What is the shortest relative pathname that will take you from the `Assignments` directory up to the `CST8207-15F` directory? 2. In the `CST8207-15F` directory, use a command to recursively walk the current directory and print all the pathnames under the current directory on your screen. **Hint:** You used this exact command to print all the pathnames under the current directory in Section 8 of [Worksheet #02 HTML]. ### `found.txt` 3. Repeat the same recursive command you just used and redirect the output of the command into file `found.txt` in your [Base Directory] (not in your current directory). **Hint:** For the redirection output file pathname, you must use a relative pathname that leads from your current directory down into the [Base Directory]. The relative pathname will contain two embedded slashes separating three name components. The **basename** of the relative pathname must be the destination file name `found.txt` 4. Use a command that shows file names to confirm that the `found.txt` file is located in the [Base Directory] and not in the current directory. Run the [Checking Program] to verify your work so far. Creating new files and directories ---------------------------------- > You may find it easier to type if you make the [Base Directory] you created > above (`assignment03`) your current directory for this section. The file > names in this section have been deliberately chosen to contain characters > that look similar but are not the same. Pay strict attention to the names > used. ### `calnew,txt` 1. Copy the `cal.txt` file you created in [Assignment #02 HTML][Assignment #02] into the [Base Directory] using the new name `calnew,txt` for the file. (Note carefully the punctuation character used in this name.) The [Base Directory] now has three files in it (and nothing else). ### `l1dir` 2. Create the following directory structure starting in the [Base Directory] and record (for study purposes) the series of commands you used to create it. Spelling and capitalization must be exactly as shown: a. Create the `l1dir` directory in the [Base Directory]. Pay careful attention to the name; the first two characters of the name are not the same. b. Under directory `l1dir` create two new directories named `one` and `two` (three letters each). c. Under directory `one` create new directory `One0ne` (six characters, including one digit zero). d. Under directory `two` create new directory `twotwO` (six letters, including one that is upper-case). > **Hint:** You can create the entire directory tree above using *one* single > command with one option and two pathname arguments, as you did at the end > of Section 4 in [Worksheet #02 HTML]. System administrators like to work > efficiently -- they learn how to do things quickly. 3. Check the structure of this directory tree using the same command as you used in the previous section. The correct directory tree under the [Base Directory] must look similar to the ASCII tree diagram below. The spelling and capitalization must be *exactly* as shown. l1dir |-- one | `-- One0ne `-- two `-- twotwO ### `Ildir` 4. Copy the directory `l1dir` to new directory `Ildir` using the correct directory copy option, as you did in Section 3 of [Worksheet #03 HTML]. Pay careful attention to the new directory name; the first two characters of the name are not the same. **Hint:** `Ildir` must not exist before you do this! If it already exists, recursively remove it *before* you do the copy, or else you will get a spurious extra level of directory. 5. Check that the tree structure of `Ildir` is *exactly* the same as the tree structure of the `l1dir` directory from which you copied it. Run the [Checking Program] to verify your work so far. Generating a recursive pathname list ------------------------------------ 1. Make the [Base Directory] your current directory and then use a command to recursively generate a list of all pathnames using your `l1dir` directory as the starting directory. (You used this recursive command above, and many times in the Section 8 in the end of [Worksheet #02 HTML]. Do not use the `tree` or `ls` commands. Use the `l1dir` directory as your *starting directory*.) The recursive output of all pathnames under your `l1dir` directory will be exactly five lines long and will contain this *exact* line in the output somewhere (along with another four lines): l1dir/one/One0ne Make sure the *exact* line above appears as one of the five lines! ### `paths.txt` 2. When the five lines of recursive output above on your screen looks correct, redirect the output of the command into the file named `paths.txt` in the `One0ne` directory that you created earlier under the `Ildir` directory. **Hint:** Draw a file system tree diagram so that you know what relative pathname to use. Don't try to invent the pathname in your head! **Hint:** For the output redirection file, use a relative path from your current directory down into the `One0ne` directory under `Ildir`. The relative pathname will contain three embedded slashes separating four name components. The **basename** of the relative pathname is the destination file name `paths.txt` 3. Make the `One0ne` directory under `Ildir` your current directory. (Make sure you get the right one under `Ildir` and not `l1dir`! Display your current working directory and make sure.) **Hint:** Draw a file system tree diagram so that you know what relative pathname to use. Don't try to invent the pathname in your head! 4. Use a command to list the files in the current (`One0ne`) directory to confirm that the `paths.txt` file is here. Use another command to display the contents of the `paths.txt` file, and make sure it contains exactly five lines of pathnames from under the `l1dir` directory. ### `paths.txt.copy` 5. From in the `One0ne` directory, copy the `paths.txt` file (from the current directory) into the `twotwO` directory that is also under the `Ildir` directory, giving it the new name `paths.txt.copy` as the destination file name for the copy. Use relative pathnames to do the copy. **Hint:** Draw a file system hierarchy picture to help you derive the correct relative pathname. For the destination file, use a relative path from your current directory that goes up the tree and then down into the `two` directory. The relative pathname will contain four embedded slashes separating five name components. The **basename** of the relative pathname should be the destination file name. ### `copycommand.txt` 6. Save a copy of the command line you just used into a file as follows: a. Use the Up-Arrow key to retrieve the copy command you just typed. b. Use the Left-Arrow key to move all the way left and then prefix the copy command line you just typed with the word `echo`; type the word `echo` followed by a space at the start of the command line, in front of the copy command name. c. Push the \[Enter\] key and confirm that the copy command name and its two relative pathname arguments echo onto the screen. d. Again use the Up-Arrow key to retrieve the echo command you just typed. e. To the right end of the echo command line, add redirection to redirect the echo output into file `copycommand.txt` in the [Base Directory]. No output should appear on screen. The `copycommand.txt` file should contain on one line the copy command name followed by two relative pathname arguments, exactly as you typed it in the preceding question. **Hints:** Because the `copycommand.txt` output file must be located in the [Base Directory], not in the current `One0ne` directory, you need to specify a relative redirection output pathname that goes up several levels to the [Base Directory]. The relative pathname will contain three embedded slashes and many *parent* directories. The **basename** of the relative pathname is the destination file name `copycommand.txt` **You will need to use the `echo` command to create another file later in this assignment. Remember how you used it here.** Run the [Checking Program] to verify your work so far. Working with existing directories and files: `topdir` ----------------------------------------------------- 1. Execute this exact command line in your account on the CLS: ~idallen/cst8207/15f/assignment03/create_topdir.sh - There is a leading *tilde* character `~` directly in front of the account name `idallen`, indicating to the shell that the pathname starts with the HOME directory of `idallen` (seven letters). - The command will create a directory named `topdir` in your [Base Directory]. The directory will contain some sub-directories and files. - To know what files and directories have been created by the above command line, use a command that will recursively show all the files and directories under a starting directory. (You already used this command, above.) Make sure you recursively show *all* the files and directories, not just the first layer. - You can re-execute the above `create_topdir.sh` command line to start this task over from scratch, if you make errors in this part of the assignment, but you will have to rename or remove the existing `topdir` first. All the following commands in this task section apply to files and directories under the new `topdir` directory. You will have to use commands to find some of the file names mentioned here; they may be located under sub-directories. (See [Searching and Finding Files].) Some of these tasks may require more than one command to complete. 2. Find and read the file named `README.txt` (located somewhere under some directory under `topdir`). You have to find this file. 3. Read and then delete the file `foo.txt` that is in the same directory as the `README.txt` file. (Do not delete any other decoy files named `foo.txt` that may be in other directories.) 4. Move (rename) the file `bar` to be `bar.bak` (This is a *move*, not a *copy*. It renames the file.) 5. Directly under the `topdir` directory, create a new empty directory named `bar` (three letters). (Make sure you create `bar` under `topdir`, not in your HOME or any other directory.) 6. Find the *file* named `stuff` (not the directory with the same name) and move (rename) that `stuff` file to be named `services` under the new directory `bar` that you just created. (This is a *move/rename*, not a *copy*.) Make sure you move the *file*, not the directory with the same name. Run the [Checking Program] to verify your work so far. Working with directories and files: `base1`, `base2`, `base3` ------------------------------------------------------------- > You may find it easier to type if you make the [Base Directory] your > current directory for this section. > > When the **word count** is given for a command, the numbers are the values > you should get if you pipe the command output into the word count command, > e.g. `date | wc` ### `base1` 1. Create the following directory structure starting in the [Base Directory] and record (for study purposes) the series of commands you used to create it. Spelling and capitalization must be exactly as shown: a. Create a directory named `base1` in your [Base Directory]. b. Under directory `base1` create two new directories named `bdir1` and `bdir2` (four letters and one digit each). c. Under directory `bdir1` create new directory `bdir1-1` (four letters, two digits, and one dash). d. Under directory `bdir2` create new directory `bdir2-1` (four letters, two digits, and one dash). > **Hint:** You can create the entire directory tree above using *one* single > command with one option and two pathname arguments, as you did at the end > of Section 4 in [Worksheet #02 HTML]. System administrators like to work > efficiently -- they learn how to do things quickly. 2. Verify that the directory tree under `base1` looks similar to the ASCII tree diagram below. The spelling and capitalization must be *exactly* as shown: base1 |-- bdir1 | `-- bdir1-1 `-- bdir2 `-- bdir2-1 3. Make the [Base Directory] your current directory and then use a command to recursively generate a list of all pathnames using `base1` as the *starting directory*. **Hints:** You used this recursive command many times in Section 8 of [Worksheet #02 HTML]. Do not use the `tree` or `ls` commands. The recursive output of all pathnames will be exactly five lines long and will contain this **exact** line in the output somewhere (along with another four lines): base1/bdir2/bdir2-1 Make sure the *exact* line above appears as one of the five lines! The word count of this command output must be: `5 5 70` and if the count is wrong, re-read all the words in ths step. ### `base1find.txt` 4. When the recursive output above on your screen looks correct, redirect the five lines of output of the command into the file named `base1find.txt` in the [Base Directory]. (That file name has one digit in it.) The word count of this file must also be: `5 5 70`. 5. **RTFM** and find the single-letter option to the copy program that preserves mode, ownership, and timestamps when you copy. Make a note of this option in your own course notes; you will use it often as a system administrator. ### `base2` 6. Under your [Base Directory] create another directory `base2` that contains a copy of everything you created under `base1`, with the timestamps preserved. **Hint:** The fastest way to do this is with a single recursive copy command, as you did in Section 3 of [Worksheet #03 HTML], but add the option to preserve timestamps. **Hint:** Do not create the `base2` directory before you copy, or else you will get a spurious extra level of directory. 7. Use a command to create an empty file named `mt` in each of the five directories from `base2` down. You will create five empty files, one in each of five directories. **Hint:** You can do this with one single command name and five relative pathnames. 8. Make the `base2` directory your current directory and then use a command to recursively generate a list of all pathnames under your current directory. The recursive output of all pathnames under your current directory will be exactly ten lines long and will contain this *exact* line in the output somewhere (along with another nine lines): ./bdir2/bdir2-1/mt Make sure the *exact* line above appears as one of the ten lines! The word count of this command output must be: `10 10 115` and if the count is wrong, re-read all the words in this step. ### `base2find.txt` 9. When the recursive output above on your screen looks correct, redirect the ten lines of output of the command into the file named `base2find.txt` in your [Base Directory] (not in the current directory). The word count of this file must also be: `10 10 115`. ### `base3` 10. Under your [Base Directory] create another directory `base3` that contains a copy of everything that you created under `base2`, with timestamps preserved. **Hint:** See the previous Hint! 11. Under `base3` rename each of the `mt` files to have the number of the immediate parent directory that contains it, e.g. rename `base3/mt` to be `base3/mt3` and `bdir2-1/mt` to be `bdir2-1/mt2-1`, etc. You don't know enough scripting yet to do this with a script; do each file manually. **Hint:** The `-type f` option to `find` may be useful here to generate a list of only file names and not show directory names. 12. Make the `base3` directory your current directory and then use a command to recursively generate a list of all pathnames under your current directory. The recursive output of all pathnames under your current directory will be exactly ten lines long and will contain this *exact* line in the output somewhere (along with another nine lines): ./bdir2/bdir2-1/mt2-1 Make sure the *exact* line above appears as one of the ten lines! The word count of this command output must be: `10 10 124` and if the count is wrong, re-read all the words in this step. ### `base3find.txt` 13. When the recursive output above on your screen looks correct, redirect the ten lines of output of the command into the file named `base3find.txt` in your [Base Directory] (not in the current directory). The word count of this file must also be: `10 10 124` Run the [Checking Program] to verify your work so far. Finding files in a maze ----------------------- ### `mymaze` 1. Create a new directory named `mymaze` in your [Base Directory]. 2. Under the [Source Directory] there is a directory named `maze` (four letters) with many, many sub-directories and sub-sub-directories, etc. (The maze contains over 21,000 pathnames.) In this large maze, find the one file with a 12-character **basename** that looks similar to *abcd0001-txt* but where the eight-character *abcd0001* part of the name is replaced by **your own account userid**. **Hints:** A. Review the definition of **basename** in the [Pathnames] class notes. B. Recall that you do not have permission to list the names of all the files in the [Source Directory], but you can access the `maze` directory there because you know its name. C. This `maze` directory contains many hidden sub-directories; you need a special option to see hidden files and directories. D. Do not try to use `cd` or `ls` to find the file in the maze; the maze is very big. Use the correct command to recursively search the `maze` directory for the file name. E. You must use a single command that recursively finds files by **basename** to find your 12-character file name. You have previously seen the command you will need in the first item `b.` of Section 8 of [Worksheet #02 HTML]. F. Read the file when you find it. The file content will tell you clearly that you have found the right file. If you see `XXX` in the file, it is not the right file. G. Pay careful attention to the exact spelling of the 12-character **basename** of the required file. ### `mazepath.txt` 3. When the above command has found your personal *abcd0001-txt* file in the maze and outputs exactly one line, put the **absolute** pathname of your personal file (one line) into a file named `mazepath.txt` in the `mymaze` directory that you created in step 1 above. **Hint:** It must be the **absolute** pathname. You will have to draw a file system diagram and figure out what that pathname is; no command will show it to you. You can test your absolute pathname by giving it as an argument to a command that reads pathnames, e.g. to `ls`, `wc`, `cat`, etc. and make sure you get no error message. **Hint:** You can use the `echo` command with output redirection to put one line of text into any file. (You used the `echo` comand in a similar way to create the one-line `copycommand.txt` file, earlier.) When you know the **absolute** pathname, give the `echo` command one argument that is the **absolute** pathname of your personal file in the maze. Make sure the pathname echoes onto your screen. Then, add output redirection to this `echo` command so that the `echo` output goes into the `mazepath.txt` file and not onto your screen. The `mazepath.txt` file should contain one line that is the **absolute** pathname of the found file in the maze. ### `treasure.txt` 4. Copy only your one personal file from the maze into your `mymaze` directory using the new file name `treasure.txt`. Read the file to make sure it's the right one before and after you copy it into your own `mymaze` directory; the file content will tell you clearly that you have found the right file. If you see `XXX` in the file, it is not the right file. **Hint:** Be careful not to copy the entire `maze` directory! Copy only the contents of one file into `mymaze`. Run the [Checking Program] to verify your work so far. When you are done ----------------- That is all the tasks you need to do. Check your work using the [Checking Program] below and save the standard output of that program into a file as described below. Submit that file (and only that one file) to Blackboard following the directions below. When you are done, log out of the CLS before you close your laptop or close the PuTTY window, by using the shell `exit` command: $ exit Checking, Marking, and Submitting your Work =========================================== **Summary:** Do some tasks, then run the **Checking Program** to verify your work as you go. You can run the **Checking Program** as often as you want. When you have the best mark, upload the single file that is the output of the **Checking Program** to Blackboard. > Since I also do manual marking of student assignments, your final mark may > not be the same as the mark submitted using the current version of the > **Checking Program**. I do not guarantee that any version of the **Checking > Program** will find all the errors in your work. Complete your assignments > according to the specifications, not according to the incomplete set of the > mistakes detected by the **Checking Program**. 1. There is a **Checking Program** named `assignment03check` in the [Source Directory] on the CLS. You can execute this program by typing its (long) pathname into the shell as a command name: $ ~idallen/cst8207/15f/assignment03/assignment03check You will learn of ways to make this shorter in future assignments. 2. Execute the above **Checking Program** as a command line on the CLS. This program will check your work, assign you a mark, and display the output on your screen. You may run the **Checking Program** as many times as you wish, allowing you to correct mistakes and get the best mark. **Some task sections require you to finish the whole section before running the *Checking Program* at the end; you may not always be able to run the *Checking Program* successfully after every single task step.** 3. When you are done with this assignment, and you like the mark displayed on your screen by the **Checking Program**, you must **redirect** only the standard output of the **Checking Program** into the text file `assignment03.txt` on the CLS, like this: $ ~idallen/cst8207/15f/assignment03/assignment03check >assignment03.txt $ cat assignment03.txt - Use output redirection with that *exact* `assignment03.txt` file name. - Be absolutely accurate, as if your marks depended on it. - Case (upper/lower case letters) matters. - Make sure the file actually contains the output of the **Checking Program**! - The file should contain, near the bottom, a line starting with: `YOUR MARK for` - Really! **MAKE SURE THE FILE HAS YOUR MARKS IN IT!** 4. Transfer the above single file `assignment03.txt` (containing the output from the **Checking Program**) from the CLS to your local computer. - You may want to refer to the [File Transfer] page for how to transfer the file. - Verify that the file still contains all the output from the **Checking Program**. - Do not edit this file! No empty files, please! Edited or damaged files will not be marked. Submit the file exactly as given. - The file should contain near the bottom a line starting with: `YOUR MARK for` - Really! **MAKE SURE THE FILE HAS YOUR MARKS IN IT!** 5. Upload the `assignment03.txt` file from your local computer to the correct Assignment area on Blackboard (with the exact name) before the due date: 1. On your local computer use a web browser to log in to Blackboard and go to the Blackboard page for this course. 2. Go to the Blackboard *Assignments* area for the course, in the left side-bar menu, and find the current assignment. 3. Under *Assignments*, click on the underlined **assignment03** link for this assignment. a) If this is your first upload, the *Upload Assignment* page will open directly; skip the next sentence. b) If you have already uploaded previously, the *Review Submission History* page will be open and you must use the *Start New* button at the bottom of the page to get to the *Upload Assignment* page. 4. On the *Upload Assignment* page, scroll down and beside *Attach File* use *Browse My Computer* to find and attach your assignment file from your local computer. Make sure the assignment file has the correct name on your local computer before you attach it. 5. After you have attached the file on the *Upload Assignment* page, scroll down to the bottom of the page and use the *Submit* button to actually upload your attached assignment file to Blackboard. Use only *Attach File* on the *Upload Assignment* page. Do not enter any text into the *Text Submission* or *Comments* boxes on Blackboard; I do not read them. Use only the *Attach File* section followed by the *Submit* button. If you need to comment on any assignment submission, send me [EMail]. You can revise and upload the file more than once using the *Start New* button on the *Review Submission History* page to open a new *Upload Assignment* page. I only look at the most recent submission. You must upload the file with the correct name from your local computer; you cannot correct the name as you upload it to Blackboard. 6. **Verify that Blackboard has received your submission**: After using the *Submit* button, you will see a page titled *Review Submission History* that will show all your uploaded submissions for this assignment. Each of your submissions is called an *Attempt* on this page. A drop-down list of all your attempts is available. a) Verify that your latest *Attempt* has the correct 16-character, lower-case file name under the *SUBMISSION* heading. b) The one file name must be the *only* thing under the *SUBMISSION* heading. Only the one file name is allowed. c) No *COMMENTS* heading should be visible on the page. Do not enter any comments when you upload an assignment. d) **Save a screen capture** of the *Review Submission History* page on your local computer, showing the single uploaded file name listed under *SUBMISSION*. If you want to claim that you uploaded the file and Blackboard lost it, you will need this screen capture to prove that you actually uploaded the file. (To date, Blackboard has never lost an uploaded file.) You will also see the *Review Submission History* page any time you already have an assignment attempt uploaded and you click on the underlined **assignment03** link. You can use the *Start New* button on this page to re-upload your assignment as many times as you like. You cannot delete an assignment attempt, but you can always upload a new version. I only mark the latest version. 7. Your instructor may also mark files in your directory in your CLS account after the due date. Leave everything there on the CLS. **Do not delete any assignment work from the CLS until after the term is over!** - I do not accept any assignment submissions by EMail. Use only the Blackboard *Attach File*. No word processor documents. Plain Text only. - Use the *exact* file name given above. Upload only one single file of Linux-format plain text, not HTML, not RTF, not MSWord. No fonts, no word-processing. Linux plain text only. - **NO EMAIL, WORD PROCESSOR, PDF, RTF, or HTML DOCUMENTS ACCEPTED.** - No marks are awarded for submitting under the wrong assignment number or for using the wrong file name. Use the exact 16-character, lower-case name given above. - **WARNING:** Some inattentive students don't read all these words. Don't make that mistake! Be exact. **READ ALL THE WORDS. OH PLEASE, PLEASE, PLEASE READ ALL THE WORDS!** -- | Ian! D. Allen - idallen@idallen.ca - Ottawa, Ontario, Canada | Home Page: http://idallen.com/ Contact Improv: http://contactimprov.ca/ | College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/ | Defend digital freedom: http://eff.org/ and have fun: http://fools.ca/ [Plain Text] - plain text version of this page in [Pandoc Markdown] format [www.idallen.com]: http://www.idallen.com/ [Course Home Page]: .. [Course Outline]: course_outline.pdf [All Weeks]: indexcgi.cgi [Plain Text]: assignment03.txt [hyperlink URLs]: indexcgi.cgi#Important_Notes__alphabetical_order_ [Assignments]: indexcgi.cgi#Assignments [Worksheet #02 PDF]: worksheet02.pdf [Worksheet #03 PDF]: worksheet03.pdf [Checking Program]: #checking-marking-and-submitting-your-work [Remote Login]: 110_remote_login.html [Course Linux Server]: 070_course_linux_server.html [The Unix/Linux Shell]: 120_shell_basics.html [Pathnames]: 160_pathnames.html [Worksheet #02 ODT]: worksheet02.odt [Worksheet #03 ODT]: worksheet03.odt [Worksheet #02 HTML]: worksheet02.html [List of Commands You Should Know]: 900_unix_command_list.html [Base Directory]: #set-up-the-base-directory-on-the-cls [Assignment #02]: assignment02.html [Worksheet #03 HTML]: worksheet03.html [Searching and Finding Files]: 180_finding_files.html [Source Directory]: #the-source-directory [File Transfer]: 015_file_transfer.html [EMail]: mailto:idallen@idallen.ca [Pandoc Markdown]: http://johnmacfarlane.net/pandoc/