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Full Discussion: sed to remove text from file
Top Forums Shell Programming and Scripting sed to remove text from file Post 302966428 by Aia on Thursday 11th of February 2016 07:32:02 PM
Old 02-11-2016
Quote:
Originally Posted by cmccabe
This doesen't seem to work although it does run:

Code:
sed -i -e 's|^|xxxx://www.xxx.com/xxx/xx/xxxx/list/|' /home/cmccabe/list

Thank you Smilie.
Hi cmccabe,

You are going to have to explain a bit more what you mean by "This [doesn't] seem to work". There is not much going on there.
sed will place the string: xxxx://www.xxx.com/xxx/xx/xxxx/list/ in front of every line and edit the file list.

You might need to explain your expectation and maybe show some bits of the result.

For troubleshooting you might want to test as:
Code:
echo "^This was the beginning before" | sed 's|^|xxxx://www.xxx.com/xxx/xx/xxxx/list/|'

Code:
xxxx://www.xxx.com/xxx/xx/xxxx/list/^This was the beginning before

 

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LEARN ABOUT SUSE

guards

GUARDS(1)						User Contributed Perl Documentation						 GUARDS(1)

NAME

       guards - select from a list of files guarded by conditions

SYNOPSIS

       guards [--prefix=dir] [--path=dir2:dir2:...] [--default=0|1]	   [-v|--invert-match] [--list|--check] [--config=file]        symbol ...

DESCRIPTION

       The script reads a configuration file that may contain so-called guards, file names, and comments, and writes those file names that satisfy
       all guards to standard output. The script takes a list of symbols as its arguments. Each line in the configuration file is processed
       separately. Lines may start with a number of guards. The following guards are defined:

	   +xxx Include the file(s) on this line if the symbol xxx is defined.

	   -xxx Exclude the file(s) on this line if the symbol xxx is defined.

	   +!xxx Include the file(s) on this line if the symbol xxx is not defined.

	   -!xxx Exclude the file(s) on this line if the symbol xxx is not defined.

	   - Exclude this file. Used to avoid spurious --check messages.

       The guards are processed left to right. The last guard that matches determines if the file is included. If no guard is specified, the
       --default setting determines if the file is included.

       If no configuration file is specified, the script reads from standard input.

       The --check option is used to compare the specification file against the file system. If files are referenced in the specification that do
       not exist, or if files are not enlisted in the specification file warnings are printed. The --path option can be used to specify which
       directory or directories to scan.  Multiple directories are eparated by a colon (":") character. The --prefix option specifies the location
       of the files.

AUTHOR

       Andreas Gruenbacher <agruen@suse.de> (SuSE Linux AG)

perl v5.12.1							    2010-07-05								 GUARDS(1)
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