26mar / 2008

Bash – Special Shell Variables

Special Shell Variables

Variable	Meaning
`$0`	Filename of script
`$1`	Positional parameter #1
`$2 - $9`	Positional parameters #2 – #9
`${10}`	Positional parameter #10
`$#`	Number of positional parameters
`"$*"`	All the positional parameters (as a single word) *
`"$@"`	All the positional parameters (as separate strings)
`${#*}`	Number of command line parameters passed to script
`${#@}`	Number of command line parameters passed to script
`$?`	Return value
`$$`	Process ID (PID) of script
`$-`	Flags passed to script (using set)
`$_`	Last argument of previous command
`$!`	Process ID (PID) of last job run in background

* Must be quoted, otherwise it defaults to « $@« .

17mar / 2008

Bash – /usr/bin/find: Argument list too long

Permet de déplacer tout (ou partie) d’un répertoire (rep1) vers un autre (rep2).

find . -type f -name '*' -exec mv {} rep2/. \;

30sept / 2007

Bash – Configuration .bashrc

export HISTSIZE=50000; alias ll='ls -l' alias la='ls -A' alias l='ls -CF' alias agi="sudo apt-get install" alias agu="sudo apt-get update" alias acs="sudo apt-cache search" SSH_KEY=`ssh-add -l` if [ "$SSH_KEY" = "The agent has no identities." ]; then ssh-add /home/***/.ssh/id_dsa fi #RSH export CVS_RSH=/usr/bin/ssh