It depends on what you mean by "32 or 64 version".
If you want to check if it uses 32-bit integers or 64-bit integers, use the following:
perl -V:ivsize # use Config; say $Config{ivsize}
- If the returned value is 4, your Perl uses 32-bit integers.
- If the returned value is 8, your Perl uses 64-bit integers.
If you want to check if it uses 32-bit pointers or 64-bit pointers, use the following:
perl -V:ptrsize # use Config; say $Config{ptrsize}
- If the returned value is 4, your Perl can address 4 GB of RAM.
- If the returned value is 8, your Perl can address "unlimited" RAM.
If you want to check if it's a 32-bit program or a 64-bit program, use the following:
perl -V:archname # use Config; say $Config{archname}
- If the returned value includes x86_64, it's a 64-bit process.
- If the returned value includes x86 (but not x86_64), it's a 32-bit process.
This value is also included in the output of perl -v.
Note: You shouldn't be checking use64bitint or use64bitall as these indicate what parameters were passed to Configure rather than provide information about what was actually used.
Copied from How can I check whether my Perl installation is 32 or 64 bit? on StackOverflow.
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