Robert Royar writes:
The problem with sed/gsed is not solvable without compounding the
issue or choosing tool names based on OS.
Well, I think my primary idea is to avoid extended REs.
However, it would also be possible to test which switch the native (=
on the default $PATH for the distro) sed accepts.
Choosing tool names based on OS probably is a bad idea; you don't know
that the non-native version will be available. (I'm sure you know
that, I'm just being complete for the archives.)
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