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Script to update data in a file

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# 1  
Old 08-22-2013
Script to update data in a file
Hi,

I need a script to update a line in a file with a file name everytime it runs.

For example

Code:
 
below are two files each files contains two rows(say 4&5) which needs to be updated with a file name
abc.param
xyz.param
Now below are two filenames which have date and time appended to it as below when it get generated. 
test1_20130819101416.dat.Z
test2_20130819094443.dat.Z

Now I want a script which can update two rows of file abc.param with the file name test1_20130819101416.dat.Z.
Also two rows of file xyz.param with filename test2_20130819094443.dat.Z

Please help. Many thanks in advance
# 2  
Old 08-22-2013
Not clear. Please post sample of two .param files and a desired output. How are the filenames supplied (variable, file, array)? What shell are you using?
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