Hi, Could somebody please explai

[butterfm]

Hi,

Could somebody please explain to me in what circumstances double square brackets should be used in conditional statemensts

e.g.

[[ .. do something .. ]]

I've not seen a single book that explains when and how they should be used. Are these ksh only ?

Much Appreciated,
Matt.

 

[vgersh99]

you could find this recent comp.unix.shell thread usefull:

http://groups.google.com/groups?dq=&hl=en&lr=&ie=UTF-8&safe=off&th=78d5b415c0929c78

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+

 

[butterfm]

Thanks vlad,

It makes more sense now. I can see the fact pattern matching being useful.

Cheers,
Matt.