Category: Shell 2013 Useful-shell-command Dec 07 2013 Some-sed-work Jun 15 2013 Pushd-and-popd Jun 13 2013 2012 Shell Study Dec 01 2012 Shell Study 2 Nov 25 2012 Shell Study Nov 25 2012 Shell Study Nov 21 2012 Beautiful PS1 Nov 07 2012