2 ms·
`#!/bin/sh' makes this less portable than it could be, if /bin/sh doesn't exists on my system it won't work, for example. Remove that line and it'll work everyw
by oguz-ismail 2y ago
`#!/bin/sh' makes this less portable than it could be, if /bin/sh doesn't exists on my system it won't work, for example. Remove that line and it'll work everywhere.
- teddyh 2y agoIf /bin/sh does not exist, what in the world is executing the shell script?
- oguz-ismail 2y agoThe shell, of course. It just might not be (because it doesn't have to be) located in /bin.
- teddyh 2y agoI’m pretty sure that /bin/sh is mandated by POSIX.
- oguz-ismail 2y agoIt's not. See https://pubs.opengroup.org/onlinepubs/9799919799/utilities/sh.html#tag_20_110_16 https://pubs.opengroup.org/onlinepubs/9799919799/utilities/s... Applications should note that the standard PATH to the shell cannot be assumed to be either /bin/sh or /usr/bin/sh, and should be determined by interrogation of the PATH returned by getconf PATH, ensuring that the returned pathname is an absolute pathname and not a shell built-in.