| |||||||||||||
checkbashismscheckbashismsPosted Dec 19, 2010 0:18 UTC (Sun) by foom (subscriber, #14868)In reply to: checkbashisms by epa Parent article: Introducing the "Debian's Automated Code Analysis" (DACA) project
Because if you meant bash, you can just say "/bin/bash"?
(Log in to post comments)
checkbashisms Posted Dec 19, 2010 0:48 UTC (Sun) by dlang (✭ supporter ✭, #313) [Link]
so why not just go through every init script and sed #/bin/sh#/bin/bash# and not have to worry about it any longer?
checkbashisms Posted Dec 19, 2010 1:08 UTC (Sun) by foom (subscriber, #14868) [Link]
Yup. That sounds like a good plan to me :) (that's what I did with all my shell scripts when Ubuntu first started making a fuss about this.)
checkbashisms Posted Dec 19, 2010 13:22 UTC (Sun) by pkern (subscriber, #32883) [Link] That's a valid option of course. However, if it's only a small bit of work you can save a bit of time on every invocation of the script, by using a faster shell than bash as `/bin/sh'. As long as you intentionally expect bash with its feature set for a script, it's fine to just write `/bin/bash' as your interpreter. This work is supposed to check for the accidental expectation that the POSIX `/bin/sh' has the bash feature set.
checkbashisms Posted Dec 22, 2010 12:31 UTC (Wed) by epa (subscriber, #39769) [Link]
Or, just as well, declare /bin/sh to be bash and have
a separate /bin/minimal_bare_bones_sh for the tiny number of cases where it is truly needed.
Fifteen years ago bash might have been seen as bloated.
checkbashisms Posted Dec 25, 2010 5:07 UTC (Sat) by foom (subscriber, #14868) [Link]
POSIX sh is standardized. Regardless of what /bin/sh actually points to, or how bloated bash is or is not, if you write a script that depends on nonstandard extensions in bash, you should put #!/bin/bash at the top.
checkbashisms Posted Dec 31, 2010 11:52 UTC (Fri) by epa (subscriber, #39769) [Link]
A little ironic that you use POSIX standardization as a reason for a particular shebang line, since the #! syntax is not part of POSIX at all.
I think you are probably right though - to keep everybody happy, if you want bash it's best to say what you mean.
|
|||||||||||||