Help with batch file.
chuckh at ftml.net
Wed Aug 29 05:14:44 EDT 2007
-----BEGIN PGP SIGNED MESSAGE-----
The sed utility has an option to edit a file "in place" so you don't
need the temp file. I think it is -i to do that.
On Tue, Aug 28, 2007 at 09:00:03PM +0100, Gaijin wrote:
> Chris Norman <chris,norman4&ntlworld,com> wrote:
> > I am writing a bash script. Part of the script involves deleting one
> > line of a file, which will be located anywhere in the file.
> cat <file> | grep -i "<text>" >temp-file>
> mv <temp-file> <file>
> The above does an inverse grep, displaying everything BUT the line
> of text you specify, and redirects the output to a temp file. Then it
> moves the newly created temp file onto the original file, overwriting
> the original. The sed equivalent would probably be:
> cat <file> | sed 's/<text to delete>//' > <output-file>
> If you want to remove more than one line with matching text, add
> the 'global' modifier to it:
> cat <file> | sed 's/<text to delete>//g' > <output-file>
> Boning up on 'Regular Expressions' will help in this regard. HTH,
> Speakup mailing list
> Speakup at braille.uwo.ca
The Moon is Waning Gibbous (99% of Full)
My new web site location is at: http://hallenbeck.ftml.net
College, that fountain of knowledge, where everyone goes to drink.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
-----END PGP SIGNATURE-----
More information about the Speakup