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JOIN(1) User Commands JOIN(1)
NAME
join - join lines of two files on a common field
SYNOPSIS
join [OPTION]... FILE1 FILE2
DESCRIPTION
For each pair of input lines with identical join fields, write a line
to standard output. The default join field is the first, delimited by
whitespace. When FILE1 or FILE2 (not both) is -, read standard input.
-a FILENUM
print unpairable lines coming from file FILENUM, where FILENUM
is 1 or 2, corresponding to FILE1 or FILE2
-e EMPTY
replace missing input fields with EMPTY
-i, --ignore-case
ignore differences in case when comparing fields
-j FIELD
equivalent to `-1 FIELD -2 FIELD'
-o FORMAT
obey FORMAT while constructing output line
-t CHAR
use CHAR as input and output field separator
-v FILENUM
like -a FILENUM, but suppress joined output lines
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
--help display this help and exit
--version
output version information and exit
Unless -t CHAR is given, leading blanks separate fields and are
ignored, else fields are separated by CHAR. Any FIELD is a field num-
ber counted from 1. FORMAT is one or more comma or blank separated
specifications, each being `FILENUM.FIELD' or `0'. Default FORMAT out-
puts the join field, the remaining fields from FILE1, the remaining
fields from FILE2, all separated by CHAR.
Important: FILE1 and FILE2 must be sorted on the join fields. E.g.,
use `sort -k 1b,1' if `join' has no options.
AUTHOR
Written by Mike Haertel.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright © 2006 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the
terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the
extent permitted by law.
SEE ALSO
The full documentation for join is maintained as a Texinfo manual. If
the info and join programs are properly installed at your site, the
command
info join
should give you access to the complete manual.
join 6.4 November 2006 JOIN(1)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:34:17 GMT 2007
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