On Mon, Aug 06, 2018 at 04:14:49PM +0530, anant garg wrote:
> $ mode=!
> $ [ "$mode" != "ro" -a "$mode" != "rw" ] && echo OK
> + '[' '!' '!=' ro -a '!' '!=' rw ']'
> bash: [: too many arguments
The use of -a and -o as conjunctions inside a test or [ command is to
be avoided. It's not POSIX
Hi ,
I am using the below environment.
Linux kernel :- kernel-2.6.32-504.16.2.el6.x86_64
Bash version :- bash-4.1.2-29.x86_64
In our production code, one test related to parameter validation failed as
below :-
$ mode=!
$ [ "$mode" != "ro" -a "$mode" != "rw" ] && echo OK
+ '[' '!' '!=' ro -a
