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Full Discussion: Search for a value and replace other field in the same set
Top Forums Shell Programming and Scripting Search for a value and replace other field in the same set Post 302879968 by magnus29 on Monday 16th of December 2013 08:07:47 PM
Old 12-16-2013
Search for a value and replace other field in the same set
Hello friends,

I have huge file with many sets where each "set" has few lines and each set always begins with "Set" in Sq brackets as shown above.
Code:
# cat file1

[Set 1]
[Name "rnd"]
[Date "2013.12.03"]
[Result "WIN"]
[VALUE "A1B2C3"]

[Set 2]
[Name "rnd"]
[Date "2013.12.03"]
[Result "WIN"]
[VALUE "X9Y8Z7"]

[Set 3]
[Name "rnd"]
[Date "2013.12.03"]
[Result "WIN"]
[VALUE "P4Q5R6"]

Now I need to grep for a value and modify its result field. ex.

Code:
./script.sh  file1   X9Y8Z7   LOSS  >file2

first parameter is input file 2nd parameter is value to be searched and 3rd parameter is new value.
then file2 should have the new values like below:

Code:
# cat file2

[Set 1]
[Name "rnd"]
[Date "2013.12.03"]
[Result "WIN"]
[VALUE "A1B2C3"]

[Set 2]
[Name "rnd"]
[Date "2013.12.03"]
[Result "LOSS"]
[VALUE "X9Y8Z7"]

[Set 3]
[Name "rnd"]
[Date "2013.12.03"]
[Result "WIN"]
[VALUE "P4Q5R6"]

I think we can do this using awk but i have no idea. Pls help me!
Thanks!!
 

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LEARN ABOUT CENTOS

pagesize

PAGESIZE(1)						      General Commands Manual						       PAGESIZE(1)

NAME

       pagesize - Print supported system page sizes

SYNOPSIS

       pagesize [options]

DESCRIPTION

       The  pagesize utility prints the page sizes of a page of memory in bytes, as returned by getpagesizes(3). This is useful when creating por-
       table shell scripts, configuring huge page pools with hugeadm or launching applications to use huge pages with hugectl.

       If no parameters are specified, pagesize prints the system base page size as returned by getpagesize().	The  following	parameters  affect
       what other pagesizes are displayed.

       --huge-only, -H

	      Display all huge pages supported by the system as returned by gethugepagesizes().

       --all, -a

	      Display all page sizes supported by the system.

SEE ALSO

       oprofile(1), getpagesize(2), getpagesizes(3), gethugepagesizes(3), hugectl(7), hugeadm(7), libhugetlbfs(7)

AUTHORS

       libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.

								 October 10, 2008						       PAGESIZE(1)
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