Public domain
these variables can be saved in ~/.bash_profile or ~/.bashrc
decide which command lines should not be saved on the history list
HISTIGNORE="&:[ ]*:ls:exit"
list of search paths for commands:
PATH="$PATH:/usr/local/sshfs/bin/"
list of directories used as search path for the "cd" command
CDPATH="/root/Desktop"
list of directories used as search path for the "man" command
MANPATH="$MANPATH:/usr/local/sshfs/share/man/"
Colorful prompt
# Bright
PS1="\n\[\e[1;31m\]\t - \d\n\[\e[1;32m\]\u@\H:\[\e[1;36m\]\w \\$ \[\e[0m\]"
# Dark
PS1="\n\[\e[0;31m\]\@ - \d\n\[\e[0;33m\]\u@\H:\[\e[0;32m\]\w\\$ \[\e[0m\]"
Login timeout seconds
TMOUT="600"
Current process PID
echo $$
The number of seconds the script has been running
echo $SECONDS
old-style
kill -TERM `cat /var/run/ppp0.pid`
new-style
kill -TERM $(cat /var/run/ppp0.pid)
run last command
!!
reuse last parameter (you can use <ESC+.> instead)
cd !$
clear command line to start
[ctrl-u]
clear command line to end
[ctrl-k]
jump to end of line
[ctrl-e]
jump to start of line
[ctrl-a]
upper case to end of word
[alt-u]
lower case to end of word
[alt-l]
word forward
[alt-f]
word backward
[alt-b]
run last command containing word
!?word?[space]
first parameter of last command
!:1[space]
all arguments of the previous command
!-1:1*[space]
third argument from the command before the last one
!-2:3[space]
search history(can be repeated)
[ctrl+r]
1 represents stdout
2 represents stderr
stdout to file :
command > file
stderr to file :
command 2> file
stdout to stderr :
command 1>&2
stderr to stdout :
command 2>&1
stderr and stdout to file :
command > /dev/null 2>&1
command &> /dev/null
BY: Pejman Moghadam
TAG: bash
DATE: 2009-01-16 07:21:03