The Principle of Least Privilege says that software shouldn't be executed with more authority than it needs to get its job done. Unfortunately, following this principle is hard; most operating systems are configured so that the scripts and programs you run can do anything you can.

SOme stuff on bash programming

for i in pidof python; do cat /proc/$i/cmdline | tr "\0" " " | sed "s/$/ $i\n/"; done

sed '/test/{/error|critical|warning/d}' somefile

a web server in bash using netcat

En les mettant après le script