helm/zsh/functions
2013-10-26 11:49:34 -04:00

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# Check to see if a command exists
function command_exists {
command -v "$1" &> /dev/null
}
# Ask for admin password up front and keep sudo alive until the end of the script
function keep_alive {
sudo -v
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &
}
# Extract a compressed file with the appropriate command
function unpack {
if [ -f "$1" ]; then
case $1 in
*.tar.bz2) tar xjf $1 ;;
*.tar.gz) tar xzf $1 ;;
*.bz2) bunzip2 $1 ;;
*.rar) unrar x $1 ;;
*.gz) gunzip $1 ;;
*.tar) tar xf $1 ;;
*.tbz2) tar xjf $1 ;;
*.tgz) tar xzf $1 ;;
*.zip) unzip $1 ;;
*.Z) uncompress $1 ;;
*) echo "'$1' cannot be extracted via extract()" ;;
esac
else
echo "'$1' is not a valid file"
fi
}
# Source library
for f in ~/.zsh/lib/*; do source "$f"; done
# vim:set ft=zsh: