1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
#!/usr/bin/perl
########################################################################
package Linux::Distribution;
use 5.006000;
use strict;
use warnings;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw( distribution_name distribution_version );
our $VERSION = '0.14.1';
our $standard_release_file = 'lsb-release';
our %primary_release_files = (
'debian_version' => 'debian',
'debian_release' => 'debian',
'redhat-release' => 'redhat',
'redhat_version' => 'redhat',
);
our %secondary_release_files = (
'gentoo-release' => 'gentoo',
'fedora-release' => 'fedora',
'turbolinux-release' => 'turbolinux',
'mandrake-release' => 'mandrake',
'mandrakelinux-release' => 'mandrakelinux',
'mandriva-release' => 'mandriva',
'SuSE-release' => 'suse',
'knoppix-version' => 'knoppix',
'yellowdog-release' => 'yellowdog',
'slackware-version' => 'slackware',
'slackware-release' => 'slackware',
'redflag-release' => 'redflag',
'conectiva-release' => 'conectiva',
'immunix-release' => 'immunix',
'tinysofa-release' => 'tinysofa',
'trustix-release' => 'trustix',
'adamantix_version' => 'adamantix',
'yoper-release' => 'yoper',
'arch-release' => 'arch',
'libranet_version' => 'libranet',
'va-release' => 'va-linux',
'xandros-desktop-version' => 'xandros',
);
our %version_match = (
'gentoo' => 'Gentoo Base System version (.*)',
'debian' => '(.+)',
'suse' => 'VERSION = (.*)',
'fedora' => 'Fedora Core release (\d+) \(',
'redflag' => 'Red Flag (?:Desktop|Linux) (?:release |\()(.*?)(?: \(.+)?\)',
'redhat' => 'Red Hat (?:Desktop|Linux) release (.*) \(',
'slackware' => '^Slackware (.+)$',
'mandriva' => 'Mandriva Linux release (\d+.\d+) \(',
'arch' => 'Arch Linux (.*) \(',
'xandros' => 'Version: Xandros Desktop OS (.+)'
);
if ($^O ne 'linux') {
require Carp;
Carp::croak 'you are trying to use a linux specific module on a different OS';
}
sub new {
my %self = (
'DISTRIB_ID' => '',
'DISTRIB_RELEASE' => '',
'DISTRIB_CODENAME' => '',
'DISTRIB_DESCRIPTION' => '',
'release_file' => '',
'pattern' => ''
);
return bless \%self;
}
sub distribution_name {
my $self = shift || new();
my $distro;
if ($distro = $self->_get_lsb_info()){
return $distro if ($distro);
}
foreach (keys %secondary_release_files) {
if (-f "/etc/$_" && !-l "/etc/$_"){
if (-f "/etc/$_" && !-l "/etc/$_"){
$self->{'DISTRIB_ID'} = $secondary_release_files{$_};
$self->{'release_file'} = $_;
return $self->{'DISTRIB_ID'};
}
}
}
foreach (keys %primary_release_files) {
if (-f "/etc/$_" && !-l "/etc/$_"){
if (-f "/etc/$_" && !-l "/etc/$_"){
$self->{'DISTRIB_ID'} = $primary_release_files{$_};
$self->{'release_file'} = $_;
return $self->{'DISTRIB_ID'};
}
}
}
undef
}
sub distribution_version {
my $self = shift || new();
my $release;
return $release if ($release = $self->_get_lsb_info('DISTRIB_RELEASE'));
if (! $self->{'DISTRIB_ID'}){
$self->distribution_name() or die 'No version because no distro.';
}
$self->{'pattern'} = $version_match{$self->{'DISTRIB_ID'}};
return "unknown" if (! $self->{'pattern'});
return "unknown" if (! ($release = $self->_get_file_info()));
$self->{'DISTRIB_RELEASE'} = $release;
return $release;
}
sub _get_lsb_info {
my $self = shift;
my $field = shift || 'DISTRIB_ID';
my $tmp = $self->{'release_file'};
if ( -r '/etc/' . $standard_release_file ) {
$self->{'release_file'} = $standard_release_file;
$self->{'pattern'} = $field . '=(.+)';
my $info = $self->_get_file_info();
if ($info){
$self->{$field} = $info;
return $info
}
}
$self->{'release_file'} = $tmp;
$self->{'pattern'} = '';
undef;
}
sub _get_file_info {
my $self = shift;
open FH, '/etc/' . $self->{'release_file'} or die 'Cannot open file: /etc/' . $self->{'release_file'};
my $info = '';
while (<FH>){
chomp $_;
($info) = $_ =~ m/$self->{'pattern'}/;
return "\L$info" if $info;
}
undef;
}
1;
# Simple script to use the above perl module to print the distro name
if (my $distro = distribution_name) {
my $version = distribution_version();
print "$distro $version\n";
} else {
print "distribution unknown\n";
}
__END__
=head1 NAME
linux_distro - tool for printing the current linux distribution
=head1 SYNOPSIS
linux_distro
=head1 DESCRIPTION
This is a simple tool that tries to guess on what linux distribution we are running by looking for release's files in /etc. It now looks for 'lsb-release' first as that should be the most correct and adds ubuntu support. Secondly, it will look for the distro specific files.
It currently recognizes slackware, debian, suse, fedora, redhat, turbolinux, yellowdog, knoppix, mandrake, conectiva, immunix, tinysofa, va-linux, trustix, adamantix, yoper, arch-linux, libranet, gentoo, ubuntu, redflag and xandros.
It has function to get the version for debian, suse, redhat, gentoo, slackware, redflag and ubuntu(lsb). People running unsupported distro's are greatly encouraged to submit patches :-)
=head2 EXPORT
None by default.
=head1 TODO
Add the capability of recognize the version of the distribution for all recognized distributions.
=head1 AUTHORS
Alberto Re, E<lt>alberto@accidia.netE<gt>
Judith Lebzelter, E<lt>judith@osdl.orgE<gt>
=head1 COPYRIGHT AND LICENSE
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.5 or,
at your option, any later version of Perl 5 you may have available.
=cut
|
