Trevor Woerner <[email protected]> (23/10/2010): > > I am not UNIX head, but it seems '$cmd1 > /dev/null 2>&1' would be > > a more popular way to write this. > > Ha ha! Yes, that's how my fingers would more naturally phrase such a > thing. But I *believe* that is a bash-ism.
It's not, it's just a redirection. I think what you could have in mind is &>$n (used as a shortcut for >$n 2>&1). When in doubt, search for “opengroup shell” and your favourite search engine will lead you to what POSIX says. That said, back to your original patch, you could just write: | if which $arguments; then […]; fi Mraw, KiBi.
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