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@chanux
Last active November 12, 2015 18:03
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Go back in directory tree
function za()
{
## I added this in my bashrc so that I can easily
## jump back in my directory tree.
## There's probably a better way of doing this.
## But I was bored anyway.
## Backstory: https://chanux.wordpress.com/2012/08/09/no-more-cd-dot-dot-slash/
## See it in my bashrc: https://github.com/chanux/dotfiles/blob/master/bash/aliases#L25
## Usage: za <number>
## Ex: za 2 (this will take you two directories up
## from your current working directory.
## You can't go beyond your home directory.)
## To jump forward: https://github.com/rupa/z
ZA_OLD_IFS=$IFS
IFS=$(echo -en "\n\b")
if [ -z $1 ];then
za_mark=1
else
za_mark=$1
fi
za_dir=$PWD
# When in home, do nothing
[ $za_dir == $HOME ] && return
while [[ $za_mark -gt 0 && $za_dir != $HOME ]];do
za_dir=${za_dir%/*}
let za_mark-=1
done
cd $za_dir
IFS=$ZA_OLD_IFS
}
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