4 * Terminale: sintassi comandi, uso degli spazi
7 * --help, man, flags oggetti
15 - frecce di scorrimento per history
31 - http://ryanstutorials.net/linuxtutorial/piping.php
33 STDRIN , STDROUT, STRDERR
34 * redirection on files >, >>,
36 Handle Name Description
37 0 stdin Standard input
38 1 stdout Standard output
39 2 stderr Standard error
41 Redirecting the standard error (stderr) and stdout to file