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Top Forums Shell Programming and Scripting Merge two files based on a 3rd key file Post 302485858 by pravin27 on Thursday 6th of January 2011 10:34:00 AM
Old 01-06-2011
Hi,
Try this,


Code:
 awk -F"~" 'NR==FNR{a[$1]++;b[$2]++;next} {split($0,c,"|");if(a[c[1]]){printf $0"~";getline tmp < "to_file"; split(tmp,d,"|");if(b[d[1]]){print tmp}}}' key_file from_file

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zipnote(1)						      General Commands Manual							zipnote(1)

NAME
zipnote - write the comments in zipfile to stdout, edit comments and rename files in zipfile SYNOPSIS
zipnote [-w] [-b path] [-h] [-v] [-L] zipfile ARGUMENTS
zipfile Zipfile to read comments from or edit. OPTIONS
-w Write comments to a zipfile from stdin (see below). -b path Use path for the temporary zip file. -h Show a short help. -v Show version information. -L Show software license. DESCRIPTION
zipnote writes the comments in a zipfile to stdout. This is the default mode. A second mode allows updating the comments in a zipfile as well as allows changing the names of the files in the zipfile. These modes are described below. EXAMPLES
To write all comments in a zipfile to stdout use for example zipnote foo.zip > foo.tmp This writes all comments in the zipfile foo.zip to the file foo.tmp in a specific format. If desired, this file can then be edited to change the comments and then used to update the zipfile. zipnote -w foo.zip < foo.tmp The names of the files in the zipfile can also be changed in this way. This is done by following lines like "@ name" in the created temporary file (called foo.tmp here) with lines like "@=newname" and then using the -w option as above. BUGS
The temporary file format is rather specific and zipnote is rather picky about it. It should be easier to change file names in a script. Does not yet support large (> 2 GB) or split archives. SEE ALSO
zip(1), unzip(1) AUTHOR
Info-ZIP v3.0 of 8 May 2008 zipnote(1)
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