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Full Discussion: Single/Multiple Line with Special characters - Find & Replace in Unix Script
Top Forums Shell Programming and Scripting Single/Multiple Line with Special characters - Find & Replace in Unix Script Post 302426446 by r_sarnayak on Wednesday 2nd of June 2010 02:34:59 AM
Old 06-02-2010
Java Single/Multiple Line with Special characters - Find & Replace in Unix Script
Hi,

I am creating a script to do a find and replace single/multiple lines in a file with any number of lines.

I have written a logic in a script that reads a reference file say "findrep" and populates two variables $FIND and $REPLACE

print $FIND gives
Hi How r $u
Rahul()

Note: $FIND can contain one or multiple lines along with special characters

print $REPLACE gives
#Hi How r $u
#Rahul()
i am $fine
thanks()

Note: $REPLACE can contain one or multiple lines along with special characters

Now, I want to replace $FIND with $REPLACE in "introduction.sh". Can anyone help me in achieving this? i have gone through lot of threads and forums but no success.

I have tried below command but it did not work
Code:
sed "s/'$FIND'/'$REPLACE'/g" introduction.sh > introduction.sh.a
mv introduction.sh.a introduction.sh

Also tried below command
Code:
perl -pi -e "s:$FIND:$REPLACE:g" introduction.sh

Also, tried awk
Code:
awk '{gsub(a,b);print}' a="$FIND" b="$REPLACE" introduction.sh > introduction.sh.a
mv introduction.sh.a introduction.sh

But this gave an error as below
awk: syntax error near line 1
awk: illegal statement near line 1
Last edited by r_sarnayak; 06-02-2010 at 05:56 AM.. Reason: adding code tags
 

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LEARN ABOUT CENTOS

hal-find-by-capability

HAL-FIND-BY-CAPABILITY(1)                                     General Commands Manual                                    HAL-FIND-BY-CAPABILITY(1)

NAME

       hal-find-by-capability - find device objects by capability matching

SYNOPSIS

       hal-find-by-capability [options]

DESCRIPTION

       hal-get-capability  finds  device  object in the HAL device database by looking at device capabilities. For more information about both the
       big picture and specific HAL properties, refer to the HAL spec which can be found in /usr/share/doc/hal-doc/spec/hal-spec.html depending on
       the distribution.

OPTIONS

       The following options are supported:

       --capability
              The name of the capability.

       --verbose
              Verbose output.

       --help Print out usage.

       --version
              Print the version.

RETURN VALUE

       If devices matching the given capability are found each UDI (Unique Device Identifier) is printed on stdout and the program exits with exit
       code 0. If no devices are found or an error occured, the program exits with a non-zero exit code.

BUGS

       Please send bug reports to either the distribution or the HAL mailing list, see http://lists.freedesktop.org/mailman/listinfo/hal on how to
       subscribe.

SEE ALSO

       hald(8), lshal(1), hal-set-property(1), hal-get-property(1), hal-find-by-property(1), dbus-send(1)

AUTHOR

       Written by David Zeuthen <david@fubar.dk> with a lot of help from many others.

                                                                                                                         HAL-FIND-BY-CAPABILITY(1)
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