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Top Forums Shell Programming and Scripting Need help with sed to match and replace a string Post 302927195 by mallak on Monday 1st of December 2014 12:43:59 PM
Old 12-01-2014
Need help with sed to match and replace a string

friends I am struck in a situation where I need to comment a line start with space as below in a file

Code:
      root@LOCALHOST * rw
          LOCALHOST* r

I should comment second line only

Any help please

Last edited by Corona688; 12-01-2014 at 01:49 PM..
 

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TOMOYO-PATTERNIZE(8)					  System Administration Utilities				      TOMOYO-PATTERNIZE(8)

NAME
tomoyo-patternize - utility to convert pathnames in policy into patterns SYNOPSIS
tomoyo-patternize tomoyo-patternize [configfile] DESCRIPTION
This program reads domain policy from standard input and replaces pathnames with patterns. Replacement rules are defined in /etc/tomoyo/tools/patternize.conf. The resulting policy is sent to standard output and is useful to shorten and simplify domain or exception policy. Pathnames used for domain names themselves will not be replaced. Only the first matching rule is used for any particular pathname. If a pathname does not match any rules, it is left unchanged. EXAMPLES
Replace "proc:/self/fd/0" with "proc:/self/fd/$" rewrite path_pattern proc:/self/fd/$ Replace "proc:/123/status" with "proc/$/status" rewrite head_pattern proc:/$ Replace "dev(8,1):/etc/mtab~456" with "dev(8,1):/etc/mtab~$" rewrite tail_pattern /etc/mtab~$ Replace "/tmp/phpZjk1k3" with @GROUP1 rewrite path_pattern /tmp/php?????? @GROUP1 Replace integers between 0-100 or 100-200 with @GROUP2 rewrite number_pattern 0-100 @GROUP2 rewrite number_pattern 100-200 @GROUP2 Replace loopback addresses with @LOCALHOST rewrite address_pattern 127.0.0.1 @LOCALHOST rewrite address_pattern 0:0:0:0:0:0:0:1 @LOCALHOST See the configuration file for more information on rule syntax. BUGS
If you find any bugs, send an email to <tomoyo-users-en@lists.sourceforge.jp>. AUTHORS
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Main author. Jamie Nguyen <jamie@tomoyolinux.co.uk> Documentation and website. SEE ALSO
tomoyo-findtemp(8), tomoyo-diffpolicy(8) See <http://tomoyo.sourceforge.jp> for more information. tomoyo-tools 2.5.0 2012-04-14 TOMOYO-PATTERNIZE(8)
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