Explore Books on
unix shells (computer programs)

Mastering Unix shell scripting

By Randal K. Michael

Learning the bash Shell

By Cameron Newham,Bill Rosenblatt

SSH, the Secure Shell

By Daniel J. Barret,Richard E. Silverman,Daniel J. Barrett

UNIX Shell programming

By Stephen G. Kochan

Using csh and tcsh

By Paul Dubois

Korn Shell / ksh: Essential Programs for Your Survival at Work

By LARRY L. SMITH