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Full Discussion: Match tab-delimited files based on key
Top Forums UNIX for Beginners Questions & Answers Match tab-delimited files based on key Post 303018241 by andmal on Friday 1st of June 2018 07:44:04 AM
Old 06-01-2018
Smilie -I suspected the suggested code was sloppy -I'm a newbie.

As I understand, this part of your suggestions tells to take the column 1 of the f21 table. Then add the .pruned extension to the stdout file? Or does it process all files with the .pruned extension?

Code:
$1 in f21       {print $0, f21[$1] > (FILENAME ".pruned")                  next

To be more clear, I have 400 of FILE 1 that should be matched to the FILE 2 table, of which there is only 1. The filename looks as in the below example. I would like to match all of the below FILE1 without having run them each at a time. They all have the same file extension. The resulting files should get an additional extension .pruned.

Code:
FILE1_VEGF.tbl.filtered.tab
FILE1_TL1A.tbl.filtered.tab
FILE1_MMP13.tbl.filtered.tab
FILE1_KYNUR.tbl.filtered.tab
+398 more files

I also don't understand this part
Code:
FILE2 FILE1[^2].txt

Does the ^ mean that the files are combined?
Is it possible to use wildcard definition e.g. *.tab to process many different versions of FILE1?
 

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LEARN ABOUT XFREE86

expand

EXPAND(1)							   User Commands							 EXPAND(1)

NAME

       expand - convert tabs to spaces

SYNOPSIS

       expand [OPTION]... [FILE]...

DESCRIPTION

       Convert tabs in each FILE to spaces, writing to standard output.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -i, --initial
	      do not convert tabs after non blanks

       -t, --tabs=N
	      have tabs N characters apart, not 8

       -t, --tabs=LIST
	      use  comma  separated  list of tab positions The last specified position can be prefixed with '/' to specify a tab size to use after
	      the last explicitly specified tab stop.  Also a prefix of '+' can be used to align remaining tab stops relative to the  last  speci-
	      fied tab stop instead of the first column

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report expand translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       unexpand(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/expand>
       or available locally via: info '(coreutils) expand invocation'

GNU coreutils 8.28						   January 2018 							 EXPAND(1)
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