From 77539190ab9ca49518cf7e7a7b052c913ca7709d Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Wed, 10 Jun 2009 14:09:48 +0200 Subject: added comments about [[ ]] to ash and hush. no code changes Signed-off-by: Denys Vlasenko --- shell/hush.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'shell/hush.c') diff --git a/shell/hush.c b/shell/hush.c index 54ab78b27..245fb586d 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -318,6 +318,11 @@ struct command { // Additional operators: // || and && should work as -o and -a // =~ regexp match +// == should do _pattern match_ against right side. bash does this: +// # [[ *a* == bab ]] && echo YES +// # [[ bab == *a* ]] && echo YES +// YES +// != does the negated == (i.e., also with pattern matching) // Apart from the above, [[ expr ]] should work as [ expr ] /* used for "export noglob=* glob* a=`echo a b`" */ -- cgit v1.2.3