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Full Discussion: combining 2 files with more than one match in second file
Top Forums Shell Programming and Scripting combining 2 files with more than one match in second file Post 302148889 by Ygor on Tuesday 4th of December 2007 03:17:14 AM
Old 12-04-2007
Try....
Code:
$ head file?
==> file1 <==
bob,232
fred,202
jim,202
pat,232
sam,232
ted,118
tim,118

==> file2 <==
alan,TEW9873FG
bob,XVT81283WS
fred,YHW81342BB
fred,YHW83281BA
fred,YHW98746CR
jake,QWE9896AQ
pat,LKJ55432GH
sam,QER8984UH
sam,QER6536WE
sam,QER2343ET

$ awk 'BEGIN{FS=OFS=","}NR==FNR{a[$1]=(a[$1]?a[$1] ";":"") $2;next}$3=(a[$1]?a[$1]:"NO_SERIAL_FOUND")' file2 file1
bob,232,XVT81283WS
fred,202,YHW81342BB;YHW83281BA;YHW98746CR
jim,202,NO_SERIAL_FOUND
pat,232,LKJ55432GH
sam,232,QER8984UH;QER6536WE;QER2343ET
ted,118,OPW4324TY
tim,118,NO_SERIAL_FOUND

 

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LEARN ABOUT CENTOS

xzdiff

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xzdiff  invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1).  All options specified
       are passed directly to cmp(1) or diff(1).  If only one file is specified, then the files compared are file1 (which must have a suffix of  a
       supported  compression format) and file1 from which the compression format suffix has been stripped.  If two files are specified, then they
       are uncompressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp(1) or diff(1) is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2011-03-19								 XZDIFF(1)
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