On 24/04/03 12:25AM, jslee wrote: > Thirdly, I recommend avoiding using /bin/sh in the #! line if you intend > things to be portable because: > > * on Linux it might be bash or dash or busybox, depending on distribution > * on macOS it might be bash or zsh or dash, depending on the state of a > symlink, macOS version, the phase of the moon, and other factors (see: man 1 > sh) > * on OpenBSD it is pdksh in sh compatibility mode (set -o sh)
I disagree, /bin/sh (and sticking to features of the POSIX shell[1]) should be the ideal, especially when portability is the goal. That said, one of my disappointments with OpenBSD is that /etc/rc assumes ksh while not having the /bin/ksh shebang as indication (so I can't use lksh in place of /bin/sh). However, when put into perspective, it makes sense considering security and control over updating the core parts of the system. [1]: https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/utilities/sh.html
