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Top Forums Shell Programming and Scripting case-insensitive if on substring Post 302338340 by dcfargo on Monday 27th of July 2009 03:32:44 PM
Old 07-27-2009
case-insensitive if on substring

I'd like to print a line if a substring is matched in a case insensitive manner

something like do a case insensitive search for ABCD as a substring:

awk '{ if (substr($1,1,4) == "[Aa][Bb][Cc][Dd]") print $1 }' infile > outfile

I'm not certain how to make the syntax work???

Thanks
 

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GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME
grub-render-label - generate a .disk_label for Apple Macs. SYNOPSIS
grub-render-label [OPTION...] [OPTIONS] DESCRIPTION
Render Apple .disk_label. -b, --bgcolor=COLOR use COLOR for background -c, --color=COLOR use COLOR for text -f, --font=FILE use FILE as font (PF2). -i, --input=FILE read text from FILE. -o, --output=FILE set output filename. Default is STDOUT -t, --text=STRING set the label to render -v, --verbose print verbose messages. -?, --help give this help list --usage give a short usage message -V, --version print program version Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly installed at your site, the command info grub-render-label should give you access to the complete manual. grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)
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