NAME
join - 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 blanks.
When FILE1 or FILE2 (not both) is -, read standard input.
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 blanks.
When FILE1 or FILE2 (not both) is -, read standard input.
OPTIONS
- -a <FILENUM>
-
also print unpairable lines from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2
Possible values:
- •
-
1
- •
-
2
- -v <FILENUM>
-
like -a FILENUM, but suppress joined output lines
Possible values:
- •
-
1
- •
-
2
- -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
- -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
- --header
-
treat the first line in each file as field headers, print them without trying to pair them
- -z, --zero-terminated
-
line delimiter is NUL, not newline
- -h, --help
-
Print help
- -V, --version
-
Print version
VERSION
v(uutils coreutils) 0.12.0