un-delete files in Linux

http://www.linux.org/threads/undelete-files-on-linux-systems.4316/

A good REST tutorial

A rest tutorial that acrually makes sense and provides useful examples:  http://docs.phalconphp.com/en/latest/reference/tutorial-rest.html

bash history timestamp

to get timestamps in your bash history do this ...

export HISTTIMEFORMAT="%F %T "

see http://larsmichelsen.com/open-source/bash-timestamp-in-bash-history/