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Discussion on: Shellscripting: Conditional Execution

puritanic profile image
Darkø Tasevski Author

Gonna address that later, thanks for the advice! I've never used BSD nor csh before, so I'm not that familiar with differences between distros and shells, as I'm almost exclusively using bash/zsh for my job.

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tux0r profile image
tux0r

This table might help. The ksh (AIX/OpenBSD default shell) does not differ that much from POSIX, the csh does.

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ikirker profile image
Ian Kirker
  • sh: the basics, POSIX standard
  • ash: reimplementation of sh
  • dash: port of ash
  • ksh: extensions on top of sh
  • bash: massive extensions on top of sh (mostly a superset of ksh's)
  • zsh: massive extensions on top of sh but different ones to bash

  • csh: a completely different shell to sh, contemporary in origin, mostly different syntax

  • tcsh: extensions on top of csh

  • fish: a completely different shell again, cut-down syntax and features mostly targeted at interactive users

So, yeah, it's important to specify which shell you're targeting.

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puritanic profile image
Darkø Tasevski Author

Thanks for the info. I've updated the posts with shell reqs. 😊