08-31-2011 01:06 AM
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/groupcrw-r--r-- 1 root sys 64 0x040000 Oct 8 2007 /dev/volumegr/groupmajor: 0x040000 , minor: 64
or the other way with shell script is to parse "ll -d /dev/volumegr/group" ?
regards
Solved! Go to Solution.
08-31-2011 01:39 AM - edited 08-31-2011 02:52 AM
tusc shows that ll(1) is just calling lstat(2).
08-31-2011 02:31 AM
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
08-31-2011 02:51 AM
The major and minor are encoded in the size field.
08-31-2011 05:02 AM
i got it :
printf " File major is %d ,\n minor is 0x%06.6x\n", ($dev >> 24) & 0xff, $rdev & 0xffffff;
08-31-2011 05:34 AM
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...
08-31-2011 06:27 AM
what do yo recommend ?
my solution or
?
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 ...
08-31-2011 06:32 AM
@support_billa wrote:what do yo recommend ?my solution orhttp://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 ...
my solution orhttp://search.cpan.org/~fedorov/File-Stat-Bits-1.01/
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".
