Quoting Simon McVittie (2020-08-14 14:29:15) > Another angle you could attack this from is to change these scripts to > use "which java >/dev/null" or, better, "command -v java >/dev/null" > instead of "which -s java". > > which(1) is non-standardized, which is likely to be part of the reason > why Debian has its own implementation not shared with other Linux > distributions. Some other Linux distributions, for example Fedora and > Arch Linux, use GNU Which <https://savannah.gnu.org/projects/which/> > and that doesn't seem to support the -s option either (but does > support a lot of other non-standard options). Adding a -s option to > the debianutils implementation of `which` will help your scripts to > run on Debian and (eventually) Debian derivatives like Ubuntu, but > won't help your scripts to run on Fedora or Arch. Other distributions > might be using debianutils `which` like Debian, GNU Which like Fedora, > or some third implementation. > > command(1) is specified by POSIX > (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html) > and should be available on all Unix-like systems, with at least the > options documented in POSIX. Regardless of the -s option, why is command preferred over which? Due to it being POSIX or for some other reason? (I tried and failed duckduckgo'ing "which command"...) - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
Attachment:
signature.asc
Description: signature