Similar to Cron

Ar (Unix)

At (command)

AWK

Bc (programming language)

Cal (command)

Cat (Unix)

Cd (command)

Chgrp

Chmod

Chown

Cksum

Cmp (Unix)

Cp (Unix)

Ctags

Cut (Unix)

Dd (Unix)

Diff

Dirname

Du (Unix)

Echo (command)

Ed (software)

Env

Eval

Exit (command)

Expr

File (command)