[apgwoz]

Yes, you can do that. But that exasperates the system portability problem. The real solution is for some distro to, gasp, decide that POSIX compatibility can be done with utilities in /opt/posix (or something) and do widespread replacement by default. But that’ll never happen…

[lillecarl]

In your scripts you can use "/usr/bin/env cat" to get whichever version of cat is first in your PATH. NixOS abuses this to an almost silly level :)