sed's expression set is limited. You can achieve better results with perl:
The \b encoding before and after essentially tells perl to look at "word boundaries". You can achieve a similar effect in sed with [^a-zA-Z0-9-_] but you still have to take care of beginning and end-of-line situations. Perl's \b does this automatically.
Hi,
I am new to using Sed. I have a file containg lines like the following:
INFORM----Test.pc:168:10/11/05 12:34:26 > some text goes here..
TRACE-----Test.pc:197:10/11/05 12:34:26 > some text goes here..
My requirement is to replace 10/11/05 12:34:26 with a string <RUNDATE> (including <... (4 Replies)
Hi guys, I hope you can help me with my problem.
I have a text file that contains lines like this:
78 ANGELO -809.05
79 ANGELO2 -5,000.06
I need to find all occurences of amounts that are negative and replace them with x's
78 ANGELO xxxxxxx
79... (4 Replies)
I have three files that the string inside it I want to replace
so my code will be
#!/bin/bash
read -p "please input the old string:" string1
read -p "please input the new string:" string2
sed -i "s/string1/string2/g" *.c
but the problem is.. the string that I want to replace can't be... (2 Replies)
Hi,
I have a file with the path of the directory present somewhere in it.I have assigned the path of the directory name to a variable. I want to replace it with another string.The code i used was
sed -e '/$variable/sbcd/' filename.
since the path name includes slashes '/', my sed command... (9 Replies)
Hi all,
I have a script which uses sed to replace one string with another. The problem is, the string to be matched, and its replacement are coming in as two command line arguments $1 and $2
$1 and $2 can be absolutely anything, but both should be treated purely as strings. My sed command... (1 Reply)
Hi all,
I have a script which uses sed to replace one string with another. The problem is, the string to be matched, and its replacement are coming in as two command line arguments $1 and $2
$1 and $2 can be absolutely anything, but both should be treated purely as strings. My sed command... (7 Replies)
hi,
when i am doing the following things getting error
Can anyone please suggest
i have a file where there is a line like the following
branch=dev sdf dev jin kilii fin kale boyle dev james dev
i want to search the existance of dev in the above line.
cat "$file" | sed -n... (8 Replies)
Hi all,
Sed is the one which always trobules me :(
here is my input :
*** it industry need to be evolved *** in the world and hope so *** to be dream
the output i am expecting is :
*** it industry need to be evolved
*** in the world and hope so
*** to be dream
... (4 Replies)
If the string is of the pattern XxxXyzAbc...
The expected out put from sed has to be Xxx Xyz Abc ...
eg: if the string is QcfEfQfs, then the expected output is Qcf Ef Efs.
If i try to substitute the pattern with space then the sed will replace the character or pattern with space,... (1 Reply)
My need is :
Want to change
docBase="/something/something/something"
to
docBase="/only/this/path/for/all/files"
I have some (about 250 files)xml files.
In FileOne it contains
<Context path="/PPP" displayName="PPP" docBase="/home/me/documents" reloadable="true" crossContext="true">... (1 Reply)
Discussion started by: linuxadmin
1 Replies
LEARN ABOUT CENTOS
lib::core::only
lib::core::only(3) User Contributed Perl Documentation lib::core::only(3)NAME
lib::core::only - Remove all non-core paths from @INC to avoid site/vendor dirs
SYNOPSIS
use lib::core::only; # now @INC contains only the two core directories
To get only the core directories plus the ones for the local::lib in scope:
$ perl -Mlib::core::only -Mlocal::lib=~/perl5 myscript.pl
To attempt to do a self-contained build (but note this will not reliably propagate into subprocesses, see the CAVEATS below):
$ PERL5OPT='-Mlib::core::only -Mlocal::lib=~/perl5' cpan
DESCRIPTION
lib::core::only is simply a shortcut to say "please reduce my @INC to only the core lib and archlib (architecture-specific lib) directories
of this perl".
You might want to do this to ensure a local::lib contains only the code you need, or to test an App::FatPacker tree, or to avoid known bad
vendor packages.
You might want to use this to try and install a self-contained tree of perl modules. Be warned that that probably won't work (see
"CAVEATS").
This module was extracted from local::lib's --self-contained feature, and contains the only part that ever worked. I apologise to anybody
who thought anything else did.
CAVEATS
This does not propagate properly across perl invocations like local::lib's stuff does. It can't. It's only a module import, so it only
affects the specific perl VM instance in which you load and import() it.
If you want to cascade it across invocations, you can set the PERL5OPT environment variable to '-Mlib::core::only' and it'll sort of work.
But be aware that taint mode ignores this, so some modules' build and test code probably will as well.
You also need to be aware that perl's command line options are not processed in order - -I options take effect before -M options, so
perl -Mlib::core::only -Ilib
is unlike to do what you want - it's exactly equivalent to:
perl -Mlib::core::only
If you want to combine a core-only @INC with additional paths, you need to add the additional paths using -M options and the lib module:
perl -Mlib::core::only -Mlib=lib
# or if you're trying to test compiled code:
perl -Mlib::core::only -Mblib
For more information on the impossibility of sanely propagating this across module builds without help from the build program, see
<http://www.shadowcat.co.uk/blog/matt-s-trout/tainted-love> - and for ways to achieve the old --self-contained feature's results, look at
App::FatPacker's tree function, and at App::cpanminus's --local-lib-contained feature.
AUTHOR
Matt S. Trout <mst@shadowcat.co.uk>
LICENSE
This library is free software under the same terms as perl itself.
COPYRIGHT
(c) 2010 the lib::core::only "AUTHOR" as specified above.
perl v5.16.3 2013-02-12 lib::core::only(3)