1 Unix/Linux Command List You Should Know (Weekly Cumulative)Index
This is a list of basic Unix/Linux command names used in this course and the week number in which they were first introduced and described. A missing week number means the command hasn’t been formally introduced yet.
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. You can also use the shell built-in help command to get information about built-in commands, e.g. help help.
This list only gives the names of the commands, not what the commands do or how to use them. As you use each command, you must 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:
WK Command, feature, or technique introduced
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01 (Labour Day) Terminal Control Characters: ^C ^D ^W ^U ^Z
02 Remote Login, CLS, Setting the BASH prompt: PS1='[\u@\h \W]\$ '
03 GLOB characters: * ? [...], aliases
04 I/O Redirection: < > | 2>&1, Pipes
05 Editors, Shell local and environment variables, start-up files
05 Midterm #1 review
06 Midterm #1 (Monday morning)
06 cp, search $PATH
07 (Thanksgiving) Quoting, File System
07 CentOS VM Installation
08 Inodes and hard links, ln, Symbolic Links, Disk Usage, du, quota
09 Permissions: whoami, id, groups, umask, chmod
09 Midterm #2 review
10 Midterm #2 (Monday morning)
10 Unix/Linux Software Package Management: yum, rpm, and tar
11 system logs, syslog, scheduling with crontab, at
11 Processes, Jobs, Background, Foreground, Kill, Signals
12 users and groups, su, sudo, chown, chsh, useradd, gpasswd, etc.
12 Partitions and File Systems - fdisk, mkfs, mount, swap
13 Boot Process, GRUB, Run Levels, services, telinit, chkconfig
14 Data Mining
03 alias (shell built-in)
02 apropos (synonym for: man -k)
11 at
04 awk '{print $1}' (also $2, $NF, etc.)
02 bash
11 bg (shell built-in)
01 cal (9 1752)
01 cat
02 cd (shell built-in)
09 chmod ( -R ugo[-+=]rwx octal_number )
12 chown ( -R ) [owner][:[group]]
02 clear
02 cp ( -a -r -p )
11 crontab
04 cut
01 date
09 df
12 diff
11 dmesg
08 du
02 echo (shell built-in and external)
eject
02 exit (shell built-in)
05 export (shell built-in)
12 fdisk ( -l )
11 fg (shell built-in)
03 fgrep (see grep -F)
01 figlet
01 file ( -s -L )
02 find ( -name -user -inum -size -print -ls )
12 gpasswd
03 grep ( -i -v -w )
13 grub ( command line and stand-alone boot )
12 groupadd
12 groupdel
12 groupmod
09 groups
04 head
08 help (shell built-in)
03 history (shell built-in)
05 hostname
09 id
11 jobs (shell built-in)
11 kill (shell built-in)
11 killall
last
02 less (similar to "more"; used by "man")
08 ln ( -s )
05 locate
01 ls ( -l -i -a -d -L )
02 man ( -k )
08 md5sum
02 mkdir ( -p )
12 mkfs
12 mkswap
03 more (similar to "less")
12 mount
03 mv
05 nano
12 newgrp
04 nl (same as "cat -n")
02 passwd ( username )
11 ps ( uaxww -efww )
11 pstree
02 pwd (shell built-in and also external)
08 quota -v
08 reboot (see also: shutdown -h now)
03 rm ( -r -f )
02 rmdir
10 rpm
13 service
05 set (shell built-in)
05 shopt (shell built-in)
08 shutdown -h now (see also: reboot)
03 sleep (60)
04 sort ( -f -n -r )
12 su ( - )
12 sudo
03 sum
12 swapoff
12 swapon
04 tail
10 tar
01 toilet
03 touch
02 tree
09 umask ( octal_number ) (shell built-in)
12 umount
03 unalias ( -a ) (shell built-in)
14 uname
05 uniq ( -c )
12 useradd
12 userdel
12 usermod
05 vi / vim / vimtutor
04 wc ( -l -w -c )
01 who
04 whoami
02 whois (also Week 05 and Week 11)
08 yumKeep 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.
