There are three files in a directory:
ab2 ab23 ab3
When I execute:
ls ab+(2|3)
It displays:
ab2 ab23 ab3
instead of ab2
and ab3
only.
Any ideas why it is like that? Is it a bug?
There are three files in a directory:
ab2 ab23 ab3
When I execute:
ls ab+(2|3)
It displays:
ab2 ab23 ab3
instead of ab2
and ab3
only.
Any ideas why it is like that? Is it a bug?
Copyright © 2021 Jogjafile Inc.
It's not a bug.
+(pattern)
matches one or more occurrences of the pattern.+(2|3)
will match any combination and any number of2
's and3
's:2
,3
,23
,32
,222
,333
,3223232323
—any of those.If you want strict alternation without repeats, change
+
to@
:(Or just use
ab[23]
. That doesn't even requireextglob
.)