But info page does. Really a bother.
tia,
Bruce
shell:
$ join --version
join (textutils) 2.0.21
Written by Mike Haertel.
$
manpage:
...
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.
...
info file (coreutils) Top:
GNU Core-utils
**************
This manual documents version 4.1.9 of the GNU command line utilities.
...
info file (coreutils) join invocation:
...
Either FILE1 or FILE2 (but not both) can be `-', meaning standard
input. FILE1 and FILE2 should be sorted on the join fields.
...
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