(admittedly not an actual "fedora" topic but i'm sure i'll get some
good advice here.)
i'm currently perusing someone else's collection of shell scripts,
and looking to add more, and want to clarify once and for all the
meaning of writing (and verifying) the "POSIX-ness" of shell scripts,
and what tools i can use to detect "bashisms" (or lack of POSIX-ness)
in scripts.
first, can i verify that trying to keep my scripts as POSIX-compatible
as possible is a good thing? i've always assumed that, just curious as
to what others think, and how much effort they put into adhering to
the POSIX standard (thereby giving up all those cool bash extensions).
next, if i want to enforce POSIX-ness, is it just a matter of using
#!/bin/sh --posix
actually, i already know it's not that simple, since i'm sure i've
read that even adding that "--posix" option still leaves some
non-POSIX features active; i'll re-read the docs to verify that.
finally, pointers to shell analysis utilities? WRT fedora packages,
i've already found:
* devscripts-checkbashisms
* ShellCheck
and i suspect there are others.
so, thoughts? and any pointers to online coverage of this stuff?
thank you kindly.
rday
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