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JOIN(1) User Commands JOIN(1)
join - join lines of two files on a common field
join [OPTION]... FILE1 FILE2
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.
print unpairable lines coming from file FILENUM, where FILENUM
is 1 or 2, corresponding to FILE1 or FILE2
replace missing input fields with EMPTY
-i, --ignore-case ignore differences in case when comparing fields
equivalent to '-1 FIELD -2 FIELD'
obey FORMAT while constructing output line
use CHAR as input and output field separator
like -a FILENUM, but suppress joined output lines
join on this FIELD of file 1
join on this FIELD of file 2
--help display this help and exit
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.
Written by Mike Haertel.
Report bugs to <firstname.lastname@example.org>.
Copyright (C) 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.
The full documentation for join is maintained as a Texinfo manual. If
the info and join programs are properly installed at your site, the
should give you access to the complete manual.
join 5.97 March 2012 JOIN(1)
© 1994 Man-cgi 1.15, Panagiotis Christias <email@example.com>