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Full Discussion: Deleting lines from file using another file
Top Forums Shell Programming and Scripting Deleting lines from file using another file Post 302329780 by kshji on Monday 29th of June 2009 11:36:07 AM
Old 06-29-2009
If data include special chars (reserved char) like *$()!&/ ... then you have to escape those chars like here is ex. $ *
\1 = 1st ( ) group
& = whole input
in this case they are same
Code:
sed -e "s/\$/\\\$/g" \
  -e "s/\*/\\\*/g" b.txt | \
sed "s/^\(.*\)$/\/\1\/d/"  > x.tmp
# or "s/.*/\/&\/d/"
sed -f x.tmp a.txt

grep -v -f b.txt a.txt
is nice, but same problem. Ex. if linedata include '.*', result is ...
 

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LEARN ABOUT XFREE86

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)
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