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Perhaps you should just try it?

> { echo out; echo err >&2; } >f1 2>&1 > cat f1 out err > { echo out; echo err >&2; } 2>&1 >f1 err > cat f1 out

Redirection order definitely DOES matter in the shell. (Hmm, unless it's shell-specific? I'm using bash)

And just to do exactly what you said..

> perl -e'print "print\n"; warn "warn"' >f1 2>&1 > cat f1 warn at -e line 1. print > perl -e'print "print\n"; warn "warn"' 2>&1 >f1 warn at -e line 1. > cat f1 print

In the first case both print and warn go to the file, in the second case warn goes to stdout and print to the file.

In reply to Re^3: capturing stderr of echo piped to a file by Crackers2
in thread capturing stderr of echo piped to a file by cebundy

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