More Command Line Magic

Wow, I was looking around for a way to quickly convert my ls -al listing into octal ’0774′ permission display. I found a really neat awk script that does just this here:
http://www.linuxforums.org/forum/newbie/21722-command-shows-me-permissions-file-octal.html#post371256

it’s this:
ls -l | awk ‘{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf(“%0o “,k);print}’

to make it permanent, add this to your .profile:
alias l=”ls -la –color | awk ‘{k=0;for(i=0;i<=8;i++)k+=((substr(\$1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf(\” %0o \”,k);print}’”