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join
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 1 (Commandes utilisateur)
NAME
join - join lines of two files on a common fieldSYNOPSIS
join [OPTION]... FILE1 FILE2DESCRIPTION
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
- --check-order
- check that the input is correctly sorted, even if all input lines are pairable
- --nocheck-order
- do not check that the input is correctly sorted
- --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 number counted from 1. FORMAT is one or more comma or blank separated specifications, each being `FILENUM.FIELD' or `0'. Default FORMAT outputs 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. Note, comparisons honor the rules specified by `LC_COLLATE'. If the input is not sorted and some lines cannot be joined, a warning message will be given.
AUTHOR
Written by Mike Haertel.REPORTING BUGS
Report join bugs to bug-coreutils@gnu.orgGNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright © 2009 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
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 coreutils 'join invocation'
should give you access to the complete manual.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre