Pro Bash Programming: Scripting the Linux Shell by MD Johnson, Chris, Ma: Used

Pro Bash Programming: Scripting the Linux Shell by Johnson, Chris

Shell Programming and Bash Scripting: Ultimate Beginners Guide Book

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Pro Bash Programming: Scripting The Linux Shell

Command Line Kung Fu: Bash Scripting Tricks, Linux Shell Programming Tips, a...

Pro Bash Programming: Scripting the Linux Shell (Expert's Voice in Linux)