Frank Wiegand schrieb:
> Robert Berghaus schrieb:
>> Gibt es bei all den vielen internen Variablen auch eine, welche den
>> kompletten Pfad des Interpreters enthält?
>
> $^X (seit 5.6)
>
> Siehe perlvar.
Danke, das funktioniert unter OS2 schonmal recht gut und wird es
unter Win-XP wohl auch tun.
=3Ditem $EXECUTABLE_NAME
=3Ditem $^X
The name used to execute the current copy of Perl, from C's
C<argv[0]>.
Depending on the host operating system, the value of $^X may be
a relative or absolute pathname of the perl program file, or may
be the string used to invoke perl but not the pathname of the
perl program file. Also, most operating systems permit invoking
programs that are not in the PATH environment variable, so there
is no guarantee that the value of $^X is in PATH. For VMS, the
value may or may not include a version number.
You usually can use the value of $^X to re-invoke an independent
copy of the same perl that is currently running, e.g.,
[at] first_run =3D `$^X -le "print int rand 100 for 1..100"`;
But recall that not all operating systems support forking or
capturing of the output of commands, so this complex statement
may not be portable.
Das ist genau das, was ich wollte.
--
Schönen Gruß aus dem Bergischen Land
Robert
