use Getopt::Std;
- getopt('oDI'); # -o, -D & -I take arg. Sets $opt_* as a side effect.
- getopt('oDI', \%opts); # -o, -D & -I take arg. Values in %opts
getopts('oif:'); # -o & -i are boolean flags, -f takes an argument
# Sets $opt_* as a side effect.
getopts('oif:', \%opts); # options as above. Values in %opts
+ getopt('oDI'); # -o, -D & -I take arg. Sets $opt_* as a side effect.
+ getopt('oDI', \%opts); # -o, -D & -I take arg. Values in %opts
=head1 DESCRIPTION
-The getopt() function processes single-character switches with switch
+The getopts() function processes single-character switches with switch
clustering. Pass one argument which is a string containing all switches
-that take an argument. For each switch found, sets $opt_x (where x is the
+to be recognized. For each switch found, sets $opt_x (where x is the
switch name) to the value of the argument if an argument is expected,
or 1 otherwise. Switches which take an argument don't care whether
-there is a space between the switch and the argument.
-
-The getopts() function is similar, but you should pass to it the list of all
-switches to be recognized. If unspecified switches are found on the
-command-line, the user will be warned that an unknown option was given.
-The getopts() function returns true unless an invalid option was found.
+there is a space between the switch and the argument. If unspecified switches
+are found on the command-line, the user will be warned that an unknown
+option was given. The getopts() function returns true unless an invalid
+option was found.
+
+The getopt() function is similar, but its argument is a string containing
+all switches that take an argument. Unspecified switches are silently
+accepted. Its use is not recommended.
Note that, if your code is running under the recommended C<use strict
'vars'> pragma, you will need to declare these package variables