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 SIDE
replace missing input fields with EMPTY
-i, --ignore-case ignore differences in case when comparing fields
(obsolescent) equivalent to `-1 FIELD -2 FIELD'
(obsolescent) equivalent to `-1 FIELD'
(obsolescent) equivalent to `-2 FIELD'
input files are sorted numerically
obey FORMAT while constructing output line
use CHAR as input and output field separator
like -a SIDE, but suppress joined output lines
join on this FIELD of file 1
join on this FIELD of file 2
display this help and exit
output version information and exit
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
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