On 2/16/24 14:48, Ed Jaffe wrote:
On 2/16/2024 11:33 AM, Frank Swarbrick wrote:
z/OS 3.1 added the Z Shell, zsh. Is anyone using it? How do you
like it. What interesting features does it have over bash?
I'm only at 2.5, so can't use it.
I am using it. After all, what self-respecting z/OS advocate doesn't
want to use a shell called Z?
indeed! : - )
I'm not a power user. Not doing anything I couldn't also do in bash...
I use BASH almost exclusively for interactive work, mostly because of
the nifty command retrieval feature. But ZSH has the same thing. Cool!
After Martin mentioned Mac, I logged into my nearest Mac and found my
logon shell set to BASH. But ZSH is there. (As long as my retrieve key
works, I don't notice which shell I get by default.)
WARNING: recommend that you *not* use particular shells when scripting.
That is, start your scripts with #!/bin/sh (rather than #!/bin/zsh or
#!/bin/bash).
If you need features of a particular shell, there is a better way to
indicate that.
For more info about ZSH, see the Wikipedia page.
https://en.wikipedia.org/wiki/Z_shell
The "Z" is arbitrary and (sadly) has nothing to do with our systems.
(Unless IBM snuck something in.)
I maintain pre-compiled copies of ZSH, BASH, [PD]KSH, and DASH for
several platforms as part of the Chicory collection. (But have not been
able to brew much Chicory on z/OS lately. Wanna help?)
Another popular shell is TCSH (also in Chicory), but it's a C-shell
variant. The others are all Bourne compatible, which many consider a
requirement (at least for scripting).
I have cluttered this thread enough already. I'll say more about
profiling and shell selection in another note.
-- R; <><
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