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Full Discussion: Extracting lines between 2 strings only if the pattern patches
Top Forums Shell Programming and Scripting Extracting lines between 2 strings only if the pattern patches Post 302188520 by simran on Wednesday 23rd of April 2008 04:58:48 PM
Old 04-23-2008
Thanks to all
Thank you Cherry your code did work but with a small change, i changed the $3 to $2 only then i got all the occurances of the <init-param> which has default keyword, with $3 i would get only one occurance.

Yogesh - i am not very good at understanding perl so, i havent been able to try your code. Thanks anyway for the help.

I have one more question to add to this. Actually after getting the output for the list of <init-param> that has default keyword, i need to copy the output to another web.xml file again by searching for the default keyword, but, i want to copy these lines in the web.xml only after the last occurance of the keyword, default within the <init-param>.

So, say i have a file web1.xml from which i used the Sed command given by Cherry and got the output as :
Code:
<init-param>
      <param-name>/default/logoutpage</param-name>
      <param-value>https://test.com</param-value>
    </init-param>
    <init-param>
      <param-name>/default/changepassworddate</param-name>
      <param-value>60</param-value>
    </init-param>
    <init-param>
      <param-name>/default/itemsperpage</param-name>
      <param-value>10</param-value>
    </init-param>
    <init-param>
      <param-name>/default/title</param-name>
      <param-value>test</param-value>
    </init-param>
    <init-param>
      <param-name>/default/autopopulate</param-name>
      <param-value>yes</param-value>
    </init-param>
    <init-param>
      <param-name>/default/ncpath</param-name>
      <param-value>https://test@test.com</param-value>
    </init-param>

Now i want to paste the above output to another file web2.xml, which also has few <init-param> </init-param> tags, with default keyword. I want to search for the last occurance of the <init-pram>default</init-param> tag which has default keyword and just paste the above output after the last occurance.

Hope Cherry can help me with this also. Actually i am new to SED and AWK commands in unix and am expected by my manager to prepare a script like this, which i cannot untill unless i read the tutorials.

Thanks for the help and waiting for some more help
Last edited by Yogesh Sawant; 05-09-2008 at 04:43 AM.. Reason: added code tags
 

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LEARN ABOUT DEBIAN

keyhead

keyhead(1)						      General Commands Manual							keyhead(1)

Name
       keyhead - Change FITS or IRAF header keyword names

Synopsis
       keyhead [-hknv] <FITS or IRAF file> kw1=kw1a kw2=kwd2a ... kwn=kwdna

Description
       Change the names of keywords in FITS or IRAF image headers.  Each current image keyword whose entry is to be modified should be followed by
       an equal sign and a second keyword, with no intervening spaces.	If the -r option is used, the value of the second keyword is transfered to
       that  of the first. Otherwise, the name of the first keyword is changed to the second keyword.  To change keywords in a list of files, sub-
       stitute @<listfile> for the file names on the command line.  To change a lot of keywords, put them, one pair separated by an = sign with no
       spaces  per  line, in a file and substitute @<keylistfile> on the command line.	If two @ commands are present, the program will figure out
       which contains file names and which contains keywords.  Lines in a keyword list file which do not contain an = are ignored.

Options
       -h     Write HISTORY line into output header with sethead version, current date and time, and names of keywords set.

       -k     Write KEYHEAD keyword into output header with the keyhead version, current date and time, and names  of  keywords  whose	names  are
	      changed.	If a KEYHEAD keyword already exists, move the old value to a HISTORY line before writing the new value

       -n     Write a new file with an added "e" before the extension.

       -r letter
	      Replace  value of 1st keyword with value of 2nd keyword instead of changing the name of the 1st keyword to the 2nd keyword.  The 2nd
	      keyword remains in the header.  If the 1st keyword does not exist in the header, it is created.

       -v     Print confirmations of each keyword change.

Web Page
       http://tdc-www.harvard.edu/software/wcstools/keyhead.html

Author
       Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001							     WCSTools								keyhead(1)
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