host/generic/statgrab.pl

#!/usr/bin/perl -w

#-----------------------------------------------------------------
# Machine statistics grabber
#     $Author: pjm2 $
#     $Id: statgrab.pl,v 1.14 2001/01/28 19:50:15 pjm2 Exp $
#
# A Perl script to return various information about a host machine
# by examining the output of some common Unix/Linux commands.
# This is a stopgap to act as a generic way of collecting the
# data.  It is perhaps more reliable than the current Java host
# at doing this and it can obviously be used by a C++ program as
# well until the C++ host is ready to find the information out
# itself.
#-----------------------------------------------------------------


$| = 1;


# You'd be silly not to use this ;)
use strict;

# Path's
my($topbin) = "/usr/local/sbin/top";
my($dfbin) = "/usr/bin/df";
my($usersbin) = "/usr/ucb/users";
my($unamebin) = "/usr/bin/uname";

# Run the following components: -
&print_ident();
&include_osver();
&include_users();
&include_top();
&include_disk();

# End the program normally.
exit(0);


# prints out an identifier for this version of statgrab.pl
# the host should check this when reading data
# means the host must be checked and updated to work with newer versions.
sub print_ident() {
    print 'version statgrab.pl $Revision: 1.14 $';
    print "\n";
}

# sub to print pairs of data, separated by a single space character.
# If the second argument is undefined, then the pair is still printed,
# however, the value shall be displayed as the string "unknown".
# If $type is non-zero, then "0" is printed instead of "unknown".
sub print_pair($$$) {
    my($type, $name, $value) = @_;

    if (!defined $value) {
        if ($type) {
            $value = "0.00";
        }
        else {
            $value = "unknown";
        }
    }

    # Remove the trailing linefeed if we've not already done so.
    chomp($value);

    # print the pair of data with a space inbetween.
    print "$name $value\n";
}


# sub to find out disk partition information, if it exists.
sub include_disk() {
    
    # Run the df program.
    my(@df) = `$dfbin -ak`;

    # Go through each line of the program, looking for each thing we want.
    my($partition_no) = 0;
    for (my($i) = 0; $i < $#df; $i++) {
        my($line) = $df[$i];
        $line =~ /^(\/[^\s]*)\s*([0-9]*)\s*([0-9]*)\s*([0-9]*)\s*[^\s]*\s*(\/[^\s]*)\s*/;
        # $4 will not match unless everything before it does...
        if (defined $5) {
            my ($filesystem, $kbytes, $used, $avail, $mount) = ($1, $2, $3, $4, $5);
            &print_pair(0, "packet.disk.p$partition_no.attributes.name", $filesystem);
            &print_pair(1, "packet.disk.p$partition_no.attributes.kbytes", $kbytes);
            &print_pair(1, "packet.disk.p$partition_no.attributes.used", $used);
            &print_pair(1, "packet.disk.p$partition_no.attributes.avail", $avail);
            &print_pair(0, "packet.disk.p$partition_no.attributes.mount", $mount);
            ++$partition_no;
        }
    }
    
}

# sub to find out the list of all (non-unique) usernames logged
# in to the machine and how many their are. (not 
sub include_users() {

    # Find out all users on this machine.
    my($users) = `$usersbin`;
    chop($users);
    $users = "" unless defined $users;
    my($users_count) = 0;
    $users_count++ while $users =~ /\w+/g;
    my($users_list) = $users;

    &print_pair(1, "packet.users.count", $users_count);
    &print_pair(0, "packet.users.list", $users_list);
}


# sub to run a series of regexps on the output of 'top' to
# gather various machine statistics.
sub include_top() {

    # Find out some numbers from top.
    my(@top) = `$topbin -d2 -s1 0`;
    my($top) = join(" ", @top);
    $top =~ s/\n//g;

    &print_pair(1, "packet.load.load1", $top =~ /load averages:\s*([^\s]+?),/);
    &print_pair(1, "packet.load.load5", $top =~ /load averages:\s*.+?,\s*([^\s]+?),/);
    &print_pair(1, "packet.load.load15", $top =~ /load averages:\s*.+?,\s*.+?,\s*([^\s]+?)\s*/);
    &print_pair(1, "packet.processes.total", $top =~ /([^\s]+?) processes:/);
    &print_pair(1, "packet.processes.sleeping", $top =~ / ([^\s]+?) sleeping/);
    &print_pair(1, "packet.processes.zombie", $top =~ / ([^\s]+?) zombie/);
    &print_pair(1, "packet.processes.stopped", $top =~ / ([^\s]+?) stopped/);
    &print_pair(1, "packet.processes.cpu", $top =~ /([^\s]+?)\s*on cpu/);
    &print_pair(1, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/);
    &print_pair(1, "packet.cpu.user", $top =~ /([^\s]+?)% user/);
    &print_pair(1, "packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/);
    &print_pair(1, "packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/);
    &print_pair(1, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/);

    # The following need to be specified in megabytes.
    # If they are preceeded by a G, then multiply by 1024.   

    $top =~ /([^\s]+?)([MG]) real/;
    my($real) = $1;
    $real*=1024 if $2 eq "G";
    &print_pair(1, "packet.memory.real", $real);

    $top =~ /([^\s]+?)([MG]) free/;
    my($free) = $1;
    $free*=1024 if $2 eq "G";
    &print_pair(1, "packet.memory.free", $free);

    $top =~ /([^\s]+?)([MG]) swap in use/;
    my($swap_in_use) = $1;
    $swap_in_use*=1024 if $2 eq "G";
    # DO NOT print this one out... save it for in a moment...

    $top =~ /([^\s]+?)([MG]) swap free/;
    my($swap_free) = $1;
    $swap_free*=1024 if $2 eq "G";
    &print_pair(1, "packet.memory.swap_free", $swap_free);

    # AJ requested total swap instead of swap_in_use, so here we go!
    &print_pair(1, "packet.memory.swap_total", $swap_free + $swap_in_use);
}

# sub to get details of the machine's operating system.
sub include_osver() {

    # Find out details about the operating system
    # If these values remain undefined, then the print_pair
    # function shall show the value to be the string "unknown".
    my($os_name) = `$unamebin -s`;
    my($os_release) = `$unamebin -r`;
    my($os_platform) = `$unamebin -m`;
    my($os_sysname) = `$unamebin -n`;
    my($os_version) = `$unamebin -v`;

    &print_pair(0, "packet.os.name", $os_name);
    &print_pair(0, "packet.os.release", $os_release);
    &print_pair(0, "packet.os.platform", $os_platform);
    &print_pair(0, "packet.os.sysname", $os_sysname);
    &print_pair(0, "packet.os.version", $os_version);

}
Revision:	1.15
Committed:	Sun Jan 28 19:53:39 2001 UTC (23 years, 10 months ago) by pjm2
Content type:	text/plain
Branch:	MAIN
Changes since 1.14:	+4 -3 lines
Log Message:	Fixed uninitialized value use on zero users.
#	User	Rev	Content
1	pjm2	1.1	#!/usr/bin/perl -w
2
3			#-----------------------------------------------------------------
4			# Machine statistics grabber
5	pjm2	1.15	# $Author: pjm2 $
6			# $Id: statgrab.pl,v 1.14 2001/01/28 19:50:15 pjm2 Exp $
7	pjm2	1.1	#
8			# A Perl script to return various information about a host machine
9			# by examining the output of some common Unix/Linux commands.
10			# This is a stopgap to act as a generic way of collecting the
11			# data. It is perhaps more reliable than the current Java host
12			# at doing this and it can obviously be used by a C++ program as
13			# well until the C++ host is ready to find the information out
14			# itself.
15			#-----------------------------------------------------------------
16
17
18			$\| = 1;
19
20
21			# You'd be silly not to use this ;)
22			use strict;
23
24	tdb	1.13	# Path's
25			my($topbin) = "/usr/local/sbin/top";
26			my($dfbin) = "/usr/bin/df";
27			my($usersbin) = "/usr/ucb/users";
28			my($unamebin) = "/usr/bin/uname";
29
30	pjm2	1.6	# Run the following components: -
31	tdb	1.3	&print_ident();
32	tdb	1.2	&include_osver();
33	pjm2	1.1	&include_users();
34			&include_top();
35	pjm2	1.5	&include_disk();
36	pjm2	1.1
37	pjm2	1.6	# End the program normally.
38	pjm2	1.1	exit(0);
39
40
41
42	pjm2	1.6
43
44
45
46
47	tdb	1.3	# prints out an identifier for this version of statgrab.pl
48			# the host should check this when reading data
49			# means the host must be checked and updated to work with newer versions.
50			sub print_ident() {
51	pjm2	1.15	print 'version statgrab.pl $Revision: 1.14 $';
52	tdb	1.3	print "\n";
53			}
54	pjm2	1.1
55			# sub to print pairs of data, separated by a single space character.
56	pjm2	1.5	# If the second argument is undefined, then the pair is still printed,
57			# however, the value shall be displayed as the string "unknown".
58	pjm2	1.8	# If $type is non-zero, then "0" is printed instead of "unknown".
59			sub print_pair($$$) {
60			my($type, $name, $value) = @_;
61	pjm2	1.1
62			if (!defined $value) {
63	pjm2	1.8	if ($type) {
64	pjm2	1.9	$value = "0.00";
65	pjm2	1.8	}
66			else {
67			$value = "unknown";
68			}
69	pjm2	1.1	}
70
71			# Remove the trailing linefeed if we've not already done so.
72			chomp($value);
73
74			# print the pair of data with a space inbetween.
75			print "$name $value\n";
76			}
77
78
79	pjm2	1.5	# sub to find out disk partition information, if it exists.
80			sub include_disk() {
81
82			# Run the df program.
83	tdb	1.13	my(@df) = `$dfbin -ak`;
84	pjm2	1.5
85			# Go through each line of the program, looking for each thing we want.
86			my($partition_no) = 0;
87			for (my($i) = 0; $i < $#df; $i++) {
88			my($line) = $df[$i];
89	pjm2	1.7	$line =~ /^(\/[^\s])\s([0-9])\s([0-9])\s([0-9])\s[^\s]\s(\/[^\s])\s/;
90	pjm2	1.5	# $4 will not match unless everything before it does...
91	pjm2	1.7	if (defined $5) {
92			my ($filesystem, $kbytes, $used, $avail, $mount) = ($1, $2, $3, $4, $5);
93	pjm2	1.8	&print_pair(0, "packet.disk.p$partition_no.attributes.name", $filesystem);
94			&print_pair(1, "packet.disk.p$partition_no.attributes.kbytes", $kbytes);
95			&print_pair(1, "packet.disk.p$partition_no.attributes.used", $used);
96			&print_pair(1, "packet.disk.p$partition_no.attributes.avail", $avail);
97			&print_pair(0, "packet.disk.p$partition_no.attributes.mount", $mount);
98	pjm2	1.5	++$partition_no;
99			}
100			}
101
102			}
103
104			# sub to find out the list of all (non-unique) usernames logged
105			# in to the machine and how many their are. (not
106	pjm2	1.1	sub include_users() {
107
108			# Find out all users on this machine.
109	tdb	1.13	my($users) = `$usersbin`;
110	pjm2	1.14	chop($users);
111	pjm2	1.15	$users = "" unless defined $users;
112	pjm2	1.14	my($users_count) = 0;
113			$users_count++ while $users =~ /\w+/g;
114	pjm2	1.1	my($users_list) = $users;
115
116	pjm2	1.8	&print_pair(1, "packet.users.count", $users_count);
117			&print_pair(0, "packet.users.list", $users_list);
118	pjm2	1.1	}
119
120
121	pjm2	1.5	# sub to run a series of regexps on the output of 'top' to
122			# gather various machine statistics.
123	pjm2	1.1	sub include_top() {
124
125			# Find out some numbers from top.
126	tdb	1.13	my(@top) = `$topbin -d2 -s1 0`;
127	pjm2	1.1	my($top) = join(" ", @top);
128			$top =~ s/\n//g;
129
130	pjm2	1.8	&print_pair(1, "packet.load.load1", $top =~ /load averages:\s*([^\s]+?),/);
131			&print_pair(1, "packet.load.load5", $top =~ /load averages:\s.+?,\s([^\s]+?),/);
132			&print_pair(1, "packet.load.load15", $top =~ /load averages:\s.+?,\s.+?,\s([^\s]+?)\s/);
133			&print_pair(1, "packet.processes.total", $top =~ /([^\s]+?) processes:/);
134			&print_pair(1, "packet.processes.sleeping", $top =~ / ([^\s]+?) sleeping/);
135			&print_pair(1, "packet.processes.zombie", $top =~ / ([^\s]+?) zombie/);
136			&print_pair(1, "packet.processes.stopped", $top =~ / ([^\s]+?) stopped/);
137			&print_pair(1, "packet.processes.cpu", $top =~ /([^\s]+?)\s*on cpu/);
138			&print_pair(1, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/);
139			&print_pair(1, "packet.cpu.user", $top =~ /([^\s]+?)% user/);
140			&print_pair(1, "packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/);
141			&print_pair(1, "packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/);
142			&print_pair(1, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/);
143	pjm2	1.10
144			# The following need to be specified in megabytes.
145			# If they are preceeded by a G, then multiply by 1024.
146
147			$top =~ /([^\s]+?)([MG]) real/;
148	pjm2	1.11	my($real) = $1;
149			$real*=1024 if $2 eq "G";
150	pjm2	1.10	&print_pair(1, "packet.memory.real", $real);
151
152			$top =~ /([^\s]+?)([MG]) free/;
153	pjm2	1.11	my($free) = $1;
154			$free*=1024 if $2 eq "G";
155	pjm2	1.10	&print_pair(1, "packet.memory.free", $free);
156
157			$top =~ /([^\s]+?)([MG]) swap in use/;
158	pjm2	1.11	my($swap_in_use) = $1;
159			$swap_in_use*=1024 if $2 eq "G";
160	pjm2	1.12	# DO NOT print this one out... save it for in a moment...
161	pjm2	1.10
162			$top =~ /([^\s]+?)([MG]) swap free/;
163	pjm2	1.11	my($swap_free) = $1;
164			$swap_free*=1024 if $2 eq "G";
165	pjm2	1.10	&print_pair(1, "packet.memory.swap_free", $swap_free);
166	pjm2	1.12
167			# AJ requested total swap instead of swap_in_use, so here we go!
168			&print_pair(1, "packet.memory.swap_total", $swap_free + $swap_in_use);
169	tdb	1.2	}
170
171	pjm2	1.5	# sub to get details of the machine's operating system.
172	tdb	1.2	sub include_osver() {
173
174			# Find out details about the operating system
175	pjm2	1.5	# If these values remain undefined, then the print_pair
176			# function shall show the value to be the string "unknown".
177	tdb	1.13	my($os_name) = `$unamebin -s`;
178			my($os_release) = `$unamebin -r`;
179			my($os_platform) = `$unamebin -m`;
180			my($os_sysname) = `$unamebin -n`;
181			my($os_version) = `$unamebin -v`;
182	tdb	1.2
183	pjm2	1.8	&print_pair(0, "packet.os.name", $os_name);
184			&print_pair(0, "packet.os.release", $os_release);
185			&print_pair(0, "packet.os.platform", $os_platform);
186			&print_pair(0, "packet.os.sysname", $os_sysname);
187			&print_pair(0, "packet.os.version", $os_version);
188	tdb	1.2
189	pjm2	1.1	}