On Fri, 8 May 2009 14:38:58 +0100 Stroller <strol...@stellar.eclipse.co.uk> wrote:
> To find the part to which I refer you'll need to scroll down about > halfway through that page to "Colorize grep"; the author advises adding: > > if echo hello|grep --color=auto l >/dev/null 2>&1; then > export GREP_OPTIONS='--color=auto' GREP_COLOR='1;32' > fi > > to ~/.bashrc > > Why does he echo hello, please? Some greps (like BSD one) might not support '--color' option, so "echo hello|grep --color=auto l" will return error code, skipping if clause, and won't break grep operation by adding an unsupported option. -- Mike Kazantsev // fraggod.net
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