Similar to PWD

Wait (command)

Wall (Unix)

Wc (Unix)

Webmin

Whoami

Write (Unix)

WU-FTPD

Xargs

XEmacs

XZ Utils

Yes (Unix)

Ansys

Sun ONE

Shell (computing)

Stunnel

Neko (software)

Patch (Unix)

Byobu (software)

Redirection (computing)

LibreOffice

Less (Unix)