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I suspect echo protects youu fromm escapes unless specified with -e \e. The octal is better with sed/perl filter. May need separate parallel macros for generated errors via echo -e and filtered via sed (or perl, which has ansi terminal modules Term::ANSIColor in core lib since Perl 5.6 ). ------Original Message------ From: Derek Martin To: John Abreau Cc: discuss at blu.org ReplyTo: discuss at blu.org Subject: Re: [Discuss] sed and ANSI sequences Sent: Oct 17, 2011 12:54 On Mon, Oct 17, 2011 at 01:05:51AM -0400, John Abreau wrote: > Rather than go to that extra trouble, why not just use '\033' > (or '\\033'), which sed ill recognize correctly? Because it doesn't work, at least on my system (though, I confess I don't quite understand the results, only the second one makes sense to me): $ echo "hello my bold friend" |sed 's/bold/\033[1mbold\033[0m/g' hello my bold33[1mboldbold33[0m friend $ echo "hello my bold friend" |sed 's/bold/\\033[1mbold\\033[0m/g' hello my \033[1mbold\033[0m friend Or with double quotes: $ echo "hello my bold friend" |sed "s/bold/\\033[1mbold\\033[0m/g" hello my bold33[1mboldbold33[0m friend $ echo "hello my bold friend" |sed "s/bold/\033[1mbold\033[0m/g" hello my bold33[1mboldbold33[0m friend Odd. -- Derek D. Martin http://www.pizzashack.org/ GPG Key ID: 0xDFBEAD02 -=-=-=-=- This message is posted from an invalid address. Replying to it will result in undeliverable mail due to spam prevention. Sorry for the inconvenience. Bill, typing with thumbs
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