Similar to Wall_(UNIX)

Ed (software)

GNU Core Utilities

Mesg

Nl (Unix)

Wall (Unix)

Write (Unix)

Ar (Unix)

At (command)

AWK

Bc (programming language)

Cal (command)

Cat (Unix)

Cd (command)

Chgrp

Chmod

Chown

Cksum

Cmp (Unix)

Cp (Unix)

Cron

Ctags

Cut (Unix)

Dd (Unix)

Df (Unix)

Diff

Dirname

Du (Unix)