does a scaler conatin '-'

[jamsman]

hi simple question i am allowing the user to supply options to my script from the command line:

myscript.pl -abc INputone Inputtwo

the options are signified by the - sign it is possible for the user to not enter any options too

how do i see if $ARGV[0] contains the - and therefore is the options and not Inputone

thank you

 

[TrojanWarBlade]

Why don't you look at Getopt::Std and Getopt::Long.
These modules do all that tedium for you.



Trojan.

 

[jamsman]

thanks for the advice but the script will be distributed to many boxes each with different installations of perl soi want to keep the module use to a minimum

thanks

 

[TrojanWarBlade]

I think you'll find that these modules are part of the standard installation and therefore will always be there.


Trojan.

 

[jamsman]

ok thanks even on hold versions of perl (5)

 

[TrojanWarBlade]

if you mean old versions then yes.
You can always test if a module exists in your installation like this:

perl -e 'use Getopt::Std;'

If it comes back with errors (cannot find module) then you know you don't have it.
If it just returns with a prompt then you have it already.


Trojan.

 

[jamsman]

cheers