Updated: 2017-06-12 03:22 EDT

1 Unix/Linux Command List You Must Know (Weekly Cumulative)Indexup to index

This is a list of Unix/Linux command names used in this course and (eventually) the week number in which they were first introduced and described. A missing week number means the command hasn’t been formally introduced yet. This page is updated weekly as new commands are introduced.

Almost all these command names have manual pages. Command names that are built-in to the shell (e.g. cd, exit, pwd, history, etc.) are described somewhere in the man page for the bash shell and you can also use the BASH shell built-in help command to get information about built-in commands, e.g. help help and help pwd, etc.

This list only gives the names of the commands, not what the commands do or how to use them. As each command is introduced, you must keep your own notebook with these command names in it and a short description of what each command does; you will be required to learn and remember at least some of what each of these commands can do.

Solutions to assignments in this course use only these command names. If you want to use other command names, clear it with your instructor first.

WK  Topic covered
--  ----------------------------------------------------------------------
01  How the course works; submitting to Blackboard; course information.
01  Remote Login to the Course Linux Server and simple commands
01  Recall terminal command line history using UpArrow DownArrow keys
01  Simple command line Output Redirection using >file.txt
01  File Transfer to/from the CLS
01  Terminal Control Characters: ^C ^L
01  Using Copy and Paste in PuTTY via mouse drag and right-click
01  More Terminal Control Characters: ^C ^L ^W ^U ^R
    More Terminal Control Characters: ^D ^Z
    RTFM Manual Pages
    Absolute and Relative pathnames
    Setting the BASH shell prompt:  PS1='[\u@\h \W]\$ '
    Finding files and basic commands
    GLOB characters: * ? [...], aliases
    I/O Redirection: stdin, stdout, stderr, < > | 2>&1, Pipes
    Text Editors: basic VIM, nano (use VIM instead)
    Shell local and environment variables, export, printenv
    Start-up files (.bashrc .bash_profile)
    Midterm Test #1 45 min - in the lecture class
    Midterm Test #1 analysis
    Search $PATH
    Quoting
    Linux File System
    Inodes and hard links, ln
    Disk Usage, du, quota
    Symbolic links
    Permissions: whoami, id, groups
    Permissions: chmod, umask
    Compression, archives, difference: gzip, tar, diff
    system logs, dmesg, syslog
    Processes, Jobs, Background, Foreground, Kill, Signals
    Scheduling with crontab, at
    Midterm Test #2 45 min
    Midterm Test #2 analysis
    Shell scripts
    *** Final Withdrawal Date Friday November 10 2017 (Week 10) ***
    Shell command Substitution
    Shell control statements, the "test" helper command
    Shell control statements
    Shell control statements; shell script problems
    Final Exam (three hours some time in Week 15 December 9-16)

WK  Command name first introduced (read the course notes)
--  ----------------------------------------------------------------------
    &     (shell built-in)
    &&    (shell built-in)
    ||    (shell built-in)
    $((   (shell built-in)
    :     (shell built-in)
    alias (shell built-in)
    apropos  (same as man -k)
    at
    atq
    atrm
    awk '{print $1}'  (also $2, $NF, etc.)
    bash
    bg (shell built-in)
    bunzip2
    bzip2
    bzcat, bzless, bzfgrep, bzgrep, bzdiff, etc.
01  cal (9 1752)
    case (shell built-in)
01  cat
    cd (shell built-in)
    chmod ( -R ugo[-+=]rwx octal_number )
    clear  (see also ^L)
01  cmatrix
    cp ( -a -r -p )
    crontab
    cut
01  date
    df
    diff
    dmesg
    do (shell built-in)
    du
01  echo (shell built-in and external)
    elif (shell built-in)
    elinks ( -dump -no-numbering -no-references )
    else (shell built-in)
    esac (shell built-in)
01  exit (shell built-in)
    export (shell built-in)
    expr (shell built-in)
    false (shell built-in)
    fg (shell built-ini: use after ^Z stops a process)
    fgrep (same as grep -F) ( -i -v -w )
    fi (shell built-in)
01  figlet
    file
    find ( -name -user -inum -size -print -ls )
    for (shell built-in)
    fortune
    function (shell built-in)
    grep (use fgrep instead until you learn regular expressions next term)
    groups
    gunzip
    gzip
    head
    help (shell built-in)
    history (shell built-in)
    hostname
    id
    if (shell built-in)
    jobs (shell built-in)
    kill (shell built-in)
    killall
    less (similar to "more"; used by "man")
    let (shell built-in)
    ln ( -s )
    locate ( see slocate )
01  ls ( -l -i -a -d -L )
    mail ( -s )
    man ( -k )
    mkdir ( -p )
    more (similar to "less")
    mv
    nano [*** USE VIM INSTEAD ***]
    nl (same as "cat -n")
    passwd
    printenv
    ps ( uaxww -efww )
    pstree
    pwd (shell built-in and also external)
    quota -v
    read (shell built-in)
01  rm ( -r -f )
    rmdir
    set (shell built-in)
    shift (shell built-in)
    shopt (shell built-in)
01  sl
    sleep (60)
    slocate
    sort ( -f -n -r )  (see the weekly notes)
    sum
    tail
    tar
    test (shell built-in and also external) also known as [
    then (shell built-in)
01  toilet ( --gay )
    top
    touch
    tr
    true (shell built-in)
    tree
    umask ( octal_number ) (shell built-in)
    unalias  ( -a ) (shell built-in)
    uniq ( -c )  (see the weekly notes)
    unzip
    users
    vi / vim / vimtutor
    wc ( -l -w -c )
    whereis
    which
    while (shell built-in)
01  who
    whoami
    whois (see the weekly notes)
    zip
    zcat, zless, zfgrep, zgrep, zdiff, etc.

Keep a notebook with these command names in it and a short description of what each command does; you will be required to learn and remember at least some of what each of these commands can do.

Remember

Remember

Author: 
| Ian! D. Allen, BA, MMath  -  idallen@idallen.ca  -  Ottawa, Ontario, Canada
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| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
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