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Full Discussion: awk/nawk question to format a file
Top Forums Shell Programming and Scripting awk/nawk question to format a file Post 302292699 by kumar04 on Sunday 1st of March 2009 11:51:07 AM
Old 03-01-2009
awk/nawk question to format a file
Hi,

I am new to awk/nawk, needs help.

I want to merge the rows having emplid attribute same into a single row in the following file. In actual this kind of file will have around 50k rows.

Here is my input file

id|emplid|firstname|dep|lastname
1|001234|test|1001|1
2|002345|test|1032|2
3|001234|test|1020|1
4|123456|test|1044|4

If we see closly,lines 1 & 3 (as 001234 matches) are same but dep has different values.
I want to merge 1 & 3 lines into one line like following

id|emplid|firstname|dep|lastname
1|001234|test|1001 1020|1
2|002345|test|1032|2
3|123456|test|1044|4

Essentially I am trying to combine the rows and attribute dep where emplid is same or matching in another row(s).

Can you pl. help me how can I do in awk/nawk.

Please don't hesitate to ask if it needs more explanation.
Thanks in advance for your help.

Regards,
 

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modules.dep

MODULES.DEP(5)							    modules.dep 						    MODULES.DEP(5)

NAME

       modules.dep, modules.dep.bin - Module dependency information

SYNOPSIS

       /lib/modules/modules.dep

       /lib/modules/modules.dep.bin

DESCRIPTION

       modules.dep.bin is a binary file generated by depmod listing the dependencies for every module in the directories under
       /lib/modules/version. It is used by kmod tools such as modprobe and libkmod.

       Its text counterpar is located in the same directory with the name modules.dep. The text version is maintained only for easy of reading by
       humans and is in no way used by any kmod tool.

       These files are not intended for editing or use by any additional utilities as their format is subject to change in the future. You should
       use the modinfo(8) command to obtain information about modules in a future proof and compatible fashion rather than touching these files.

COPYRIGHT

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SEE ALSO

       depmod(8), modprobe(8)

AUTHORS

       Jon Masters <jcm@jonmasters.org>
	   Developer

       Lucas De Marchi <lucas.de.marchi@gmail.com>
	   Developer

kmod								    01/28/2018							    MODULES.DEP(5)
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