ksh, test 3

[ogniemi]

why the last test doesn't work? expected is true because B=b

$ A=a
$ B=b
$ C=c
$ [ $A = "a" -a $B = "b" -a $C = "c" ] && echo true || echo false
true
$ [ $A = "a" -a $B = "b" -a $C = "b" ] && echo true || echo false
false
$ [ $A = "a" -a [red][[/red] $B = "b" [red]-o[/red] $C = "b" [red]][/red] ] && echo true || echo false
ksh: b: 0403-012 A test command parameter is not valid.
false
$

 

[feherke]

Hi

The [tt][[/tt] is shell builtin function, you can not use it like that. The closest would be :

[ $A = "a" -a [highlight]\([/highlight] $B = "b" -o $C = "b" [highlight]\)[/highlight] ] && echo true || echo false

Tested with [tt]mksh[/tt].


Feherke.
feherke.github.io

 

[PHV]

To learn the correct syntax:
man test

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886