Linux Lab 02 Command Line
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Linux Workshop
Lab 2 Command line Requirements
Quick Reference Objectives to learn
➢ Live Linux
Command line knowledge #program files do not need an extension such as .exe #directories use / instead of \
#(often no drive letters, but) mount points.
#commands & filenames are case sensitive #help with: cmd --help #prefix ./ to start a program located in the current directory #.files are hidden (starting with a dot) command -options parameters
#General command syntax
...
#Automatic cmd completion (WinXP)
...
#Completion for cmd & file choices
...<page up>
#Browse through cmd history (
history
#Show personal cmd line history
1. Go to the tmp directory
!5
#Start command 5 from history
2. How many commands can a user execute?
cmd1 ; cmd2
#Use ; for cmd concatenation
To Do from the command line
bash)
#man, info, which, type, whereis, apropos
3. How many commands can a priviliged user execute? 4. How many commands did the user already execute in the past? 5. Execute command number 1 from the command history 6. How can you search in a directory to a filename ignoring upper and lower case characters? 7. Change the prompt. Change \w in \W or reverse.
ls /etc ¦ less
#less is more
ls /etc ¦ grep -i fstab
#Filter output using grep ignoring upper case
(
Lab 2 Command line Requirements
Quick Reference Objectives to learn
➢ Live Linux
Command line knowledge #program files do not need an extension such as .exe #directories use / instead of \
#(often no drive letters, but) mount points.
#commands & filenames are case sensitive #help with: cmd --help #prefix ./ to start a program located in the current directory #.files are hidden (starting with a dot) command -options parameters
#General command syntax
...
#Automatic cmd completion (WinXP)
...
#Completion for cmd & file choices
...<page up>
#Browse through cmd history (
history
#Show personal cmd line history
1. Go to the tmp directory
!5
#Start command 5 from history
2. How many commands can a user execute?
cmd1 ; cmd2
#Use ; for cmd concatenation
To Do from the command line
bash)
#man, info, which, type, whereis, apropos
3. How many commands can a priviliged user execute? 4. How many commands did the user already execute in the past? 5. Execute command number 1 from the command history 6. How can you search in a directory to a filename ignoring upper and lower case characters? 7. Change the prompt. Change \w in \W or reverse.
ls /etc ¦ less
#less is more
ls /etc ¦ grep -i fstab
#Filter output using grep ignoring upper case
(
to quit)
nohup cmd
#Leave cmd running aft logout (hang up) #such as the screen package
cmd &
#Start cmd in background (running)
#Set program into background (stopped)
jobs
#Show background programs
bg [nr]
#Start background program (running)
xset -b
#Set sound bell for alerts = off (in X)
echo $PS
#Show prompt string variable
export PS=
#Set prompt string variable
Theory Modules LPIC 1 Certification Bible, isbn 0-7645-4772-0 ➢ p. 63 Ch. 2 Using the Shell ➢ p. 275 Ch. 7 Using Documentation ➢ p. 72-77 Environment Variables and Settings ➢ p. 527-540 Customizing the Shell Environment
Extra References ➢ www.tldp.org ➢ www.vmware.com
© October 2, 2005, wiki.novell.com/index.php/Roberts_Quick_References, author of Foundations of Linux networking
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