ls -l  | awk ‘{ system(”chown -R “$3″ “$8) }’

//cuidado com directorios que contenham espaços doens’t work with spaces ;

find /home/ -uid 0 -exec ls -l \{\} \;

fgrep ‘gold’ /var/log/ -R | grep -i something

or regexp style search
egrep ‘(err|fail|warning)’ /var/log/* > `date +%F`.txt

ls -l  | sed -e ’s/andre/netcrash/gi’

#!/usr/bin/perl

print “hello\n”;
$dir=”/home/andre”;
if ( (!(-d $dir.”/Maildir”)) ){
`/usr/bin/maildirmake.maildrop $dir”/Maildir”`;

}

bash
[03:42:08]andre@garden:~$ for i in `seq 10`; do echo $i ; done;

Haven’t been using cut that mutch but, also a good weapon of choice.

Simple things that evolve to more complex tools