Similar to At_(UNIX)

At (command)

Echo (command)

Exit (command)

Grep

Dir (command)

Ar (Unix)

AWK

Bc (programming language)

Cal (command)

Cat (Unix)

Cd (command)

Chgrp

Chmod

Chown

Cksum

Cmp (Unix)

Cp (Unix)

Cron

Ctags

Cut (Unix)

Dd (Unix)

Diff

Dirname

Du (Unix)

Ed (software)

Env