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Top Forums Shell Programming and Scripting Convert column values into row Post 302393458 by senthil3d on Tuesday 9th of February 2010 12:46:12 AM
Old 02-09-2010
Convert column values into row

hi,
I have a requirement where in I read the values from a file using awk. The resulting data should be converted into row format from column format.

For ex: My log file login.lst contains the following
Code:
SERVER1 DB1
SERVER2 DB2
SERVER3 DB3
SERVER4 DB4

I use awk to grep only the server names as below

SERV=`cat login.lst | awk '{print $1}' `

echo $SERV prints the output ..

SERVER1
SERVER2
SERVER3
SERVER4

I want the output to be formatted as -- SERVER1 SERVER2 SERVER3 SERVER4

I tried to search the forum for any similar posts, but I couldnt find any clear definition or matching cases.

Can someone please help.

Last edited by Yogesh Sawant; 02-09-2010 at 04:02 AM.. Reason: added code tags
 

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DPKG-AWK(1)						      General Commands Manual						       DPKG-AWK(1)

NAME
dpkg-awk - Utility to read a dpkg style db file SYNOPSIS
dpkg-awk [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> .. DESCRIPTION
dpkg-awk Parses a dpkg status file (or other similarly formatted file) and outputs the resulting records. It can use regex on the field values to limit the returned records, it can also be told which fields to output, and it can sort the matched fields. OPTIONS
-f filename --file filename The file to parse. The default is /var/lib/dpkg/status. -d [#] --debug [#] Each time this is specified, it increased the debug level. -s field(s) --sort field(s) A space or comma separated list of fields to sort on. -n field(s) --numeric field(s) A space or comma separated list of fields that should be interpreted as numeric in value. -rs ?? --rec_sep ?? Output this string at the end of each output paragraph. -h --help Display some help. fieldname The fields from the file, that are matched with the regex given. The fieldnames are case insensitive. out_fieldname The fields from the file, that are output for each record. If the first field listed begins with ^, then the list of fields that follows will NOT be output. BUGS
Be warned that the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro- gram. This program comes with no warranties. If running this program causes fire and brimstone to rain down upon the earth, you will be on your own. This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg. AUTHOR
Adam Heath <doogie@debian.org> DEBIAN
Debian Utilities DPKG-AWK(1)
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