Editing Problem with bash script and sed

From	Thomas George <lists@tomgeorge.info>
Newsgroups	linux.debian.user
Subject	Editing Problem with bash script and sed
Date	2017-11-14 17:20 +0100
Message-ID	<uLM6l-5Xj-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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The problem is editing long file names to shorten them. An example group 
of file names is attached.

The bash script copied from BashScripting is attached. This script works 
perfectly with simple deletions, for example TrimLine.sh "College" "" 
will remove College from each line in File.txt.

After experimenting with regular expressions with sed I found ls | sed 
-e s/S.*-// reduced the file names in File.txt to just the names of the 
Carols as shown in sed.txt. Used like this sed leaves the original file 
unchanged.

Trim_Line.sh "S.*-" "" fails to actually change the file names. Assuming 
Trim_Line.sh does not accept the regex as a pattern, I edited it to 
replace the $1 in the sed command with the regex expression. This does 
not work, the original file is left unchanged.  I also tried  replacing 
$1 with ^.*- which also works with the test ls | sed -e s/^.*-// but 
still the file names are unchanged.

I would appreciate any help or comments.

Tom George

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Editing Problem with bash script and sed Thomas George <lists@tomgeorge.info> - 2017-11-14 17:20 +0100
  Re: Editing Problem with bash script and sed Roberto C. Sánchez <roberto@debian.org> - 2017-11-14 17:30 +0100
  Re: Editing Problem with bash script and sed "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-14 19:30 +0100
    Re: Editing Problem with bash script and sed "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-14 19:40 +0100
      Re: Editing Problem with bash script and sed Greg Wooledge <wooledg@eeg.ccf.org> - 2017-11-14 19:50 +0100
    Re: Editing Problem with bash script and sed Greg Wooledge <wooledg@eeg.ccf.org> - 2017-11-14 19:50 +0100
  Re: Editing Problem with bash script and sed David Wright <deblis@lionunicorn.co.uk> - 2017-11-14 20:50 +0100
  Re: Editing Problem with bash script and sed RESOLVED Thomas George <lists@tomgeorge.info> - 2017-11-14 21:20 +0100
  Re: Editing Problem with bash script and sed Rusi Mody <rustompmody@gmail.com> - 2017-11-19 06:10 +0100

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