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Top Forums UNIX for Dummies Questions & Answers How to modify the cat command to highlight a chosen word? Post 302974838 by RudiC on Saturday 4th of June 2016 01:58:00 PM
Old 06-04-2016
I'm afraid, no. cat does exactly this:
Quote:
cat - concatenate files and print on the standard output
You CAN make it show some special chars, too, but that's it.

BTW, "highlighting" is quite fuzzy an action. What is "highlight"? Print in bold? in red? underlined? Do it when outputting to screen? Printing? Sending it with mail, or putting it in an HTML file? All those MAY have different mechanisms to highlight.

You could do some text modifications with e.g. sed, e.g. when outputting to a VT102 (ECMA-48) compatible terminal:

Code:
sed "s/AM0./$BOLD&$OFF/" file
000000000001AM00 1500895700000000000199
000000000001AM01 035000000000013000399820810000000P

 

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CAT(1)								   User Commands							    CAT(1)

NAME
cat - concatenate files and print on the standard output SYNOPSIS
cat [OPTION]... [FILE]... DESCRIPTION
Concatenate FILE(s), or standard input, to standard output. -A, --show-all equivalent to -vET -b, --number-nonblank number nonempty output lines, overrides -n -e equivalent to -vE -E, --show-ends display $ at end of each line -n, --number number all output lines -s, --squeeze-blank suppress repeated empty output lines -t equivalent to -vT -T, --show-tabs display TAB characters as ^I -u (ignored) -v, --show-nonprinting use ^ and M- notation, except for LFD and TAB --help display this help and exit --version output version information and exit With no FILE, or when FILE is -, read standard input. EXAMPLES
cat f - g Output f's contents, then standard input, then g's contents. cat Copy standard input to standard output. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report cat translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
tac(1) The full documentation for cat is maintained as a Texinfo manual. If the info and cat programs are properly installed at your site, the command info coreutils 'cat invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 CAT(1)
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