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Full Discussion: Gsub function in awk
Top Forums Shell Programming and Scripting Gsub function in awk Post 302831713 by yifangt on Thursday 11th of July 2013 02:30:10 PM
Old 07-11-2013
Thanks a lot Yoda, and all!

Yes, the condition and action part is what I missed. However, when I did:
Code:
awk 'gsub(/[[:punct:]_[:blank:]]/, " ", $0)' text.txt

which worked fine!
Code:
This is a test for gsub
I typed this random text file
which contains punctuation like           etc 
The script should remove all the punctuations

How come like this? Thank you again!
Last edited by yifangt; 07-11-2013 at 04:32 PM..
 

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LEARN ABOUT CENTOS

grub-render-label

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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