topic Re: how can I get major and minor number (perl, shell script) in Operating System - HP-UX

how can i get major and minor number (perl, shell script)

support_billa — Wed, 31 Aug 2011 08:06:18 GMT

how can i get with standard modules the "major nr" of unix group file ?

at Modul "File::stat" i didn't find anything:

i only found following modul :

http://search.cpan.org/~pirzyk/Unix-Mknod-0.04/lib...

but in my perl env it doesn't exist :

i want of example file /dev/volumegr/group following outputs :
ll /dev/volumegr/group
crw-r--r-- 1 root sys 64 0x040000 Oct 8 2007 /dev/volumegr/group

major: 0x040000 , minor: 64

or the other way with shell script is to parse "ll -d /dev/volumegr/group" ?

regards

Re: how can I get major and minor number (perl, shell script)

Dennis Handly — Wed, 31 Aug 2011 09:52:17 GMT

tusc shows that ll(1) is just calling lstat(2).

Re: how can i get major and minor number (perl, shell script)

support_billa — Wed, 31 Aug 2011 09:31:34 GMT

hello,

@ tusc shows that ll(1) is just calling lstat(2).

i search now for "lstat" and i found "lstat" use field nr. 6

lstat / stat function

i tried with a little script , but no success

regards

Re: how can I get major and minor number (perl, shell script)

Dennis Handly — Wed, 31 Aug 2011 09:51:35 GMT

The major and minor are encoded in the size field.

Re: how can I get major and minor number (perl, shell script)

support_billa — Wed, 31 Aug 2011 12:02:22 GMT

hello,

i got it :

printf " File major is %d ,\n minor is 0x%06.6x\n", ($dev >> 24) & 0xff, $rdev & 0xffffff;

regards

Re: how can I get major and minor number (perl, shell script)

James R. Ferguson — Wed, 31 Aug 2011 12:34:14 GMT

Hi:

While you seem to have found a solution, remember, CPAN is your friend. To guarantee portability, you could fetch and install 'File::Stat::Bits':

http://search.cpan.org/~fedorov/File-Stat-Bits-1.01/

Regards!

...JRF...

Re: how can I get major and minor number (perl, shell script)

support_billa — Wed, 31 Aug 2011 13:27:32 GMT

hello,

what do yo recommend ?

my solution or

http://search.cpan.org/~fedorov/File-Stat-Bits-1.01/

a little question : with what "key" to you search at CPAN ? with "major nr" you get nothing and only "major" you get to much information ...

Re: how can I get major and minor number (perl, shell script)

James R. Ferguson — Wed, 31 Aug 2011 13:32:05 GMT

@support_billa wrote:
what do yo recommend ?
my solution or
http://search.cpan.org/~fedorov/File-Stat-Bits-1.01/
?
a little question : with what "key" to you search at CPAN ? with "major nr" you get nothing and only "major" you get to much information ...

For portability, I would use the Perl module.

As for how I found the module, the stat() system call is the key, so I searched for modules with "stat".

Regards!

...JRF...