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#!/usr/bin/perl -w |
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#----------------------------------------------------------------- |
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# Machine statistics grabber |
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# $Author: pjm2 $ |
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# $Id: statgrab.pl,v 1.5 2001/01/22 09:59:09 pjm2 Exp $ |
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# |
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# A Perl script to return various information about a host machine |
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# by examining the output of some common Unix/Linux commands. |
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# This is a stopgap to act as a generic way of collecting the |
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# data. It is perhaps more reliable than the current Java host |
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# at doing this and it can obviously be used by a C++ program as |
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# well until the C++ host is ready to find the information out |
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# itself. |
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#----------------------------------------------------------------- |
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$| = 1; |
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|
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# You'd be silly not to use this ;) |
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use strict; |
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|
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# Run the following components: - |
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&print_ident(); |
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&include_osver(); |
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&include_users(); |
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&include_top(); |
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&include_disk(); |
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|
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# End the program normally. |
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exit(0); |
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# prints out an identifier for this version of statgrab.pl |
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# the host should check this when reading data |
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# means the host must be checked and updated to work with newer versions. |
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sub print_ident() { |
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print 'version statgrab.pl $Revision: 1.5 $'; |
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print "\n"; |
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} |
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|
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# sub to print pairs of data, separated by a single space character. |
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# If the second argument is undefined, then the pair is still printed, |
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# however, the value shall be displayed as the string "unknown". |
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sub print_pair($$) { |
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my($name, $value) = @_; |
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if (!defined $value) { |
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$value = "unknown"; |
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} |
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# Remove the trailing linefeed if we've not already done so. |
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chomp($value); |
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# print the pair of data with a space inbetween. |
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print "$name $value\n"; |
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} |
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|
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# sub to find out disk partition information, if it exists. |
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sub include_disk() { |
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# Run the df program. |
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my(@df) = `df -a`; |
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# Only look for these partitions at the moment. |
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my(@partition_list) = qw{ / /home /var /tmp }; |
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# Go through each line of the program, looking for each thing we want. |
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my($scan_for) = '('.join('|', @partition_list).')'; |
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my($partition_no) = 0; |
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for (my($i) = 0; $i < $#df; $i++) { |
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my($line) = $df[$i]; |
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$line =~ /^$scan_for\s*\(([^\s]*)\s*\):\s*([0-9]*)\s*blocks\s*([0-9]*)\s*files/; |
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# $4 will not match unless everything before it does... |
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if (defined $4) { |
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my ($partition, $mounted, $blocks, $files) = ($1, $2, $3, $4); |
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&print_pair("packet.disk.p$partition_no.attributes.name", $partition); |
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&print_pair("packet.disk.p$partition_no.mounted", $mounted); |
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&print_pair("packet.disk.p$partition_no.blocks", $blocks); |
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&print_pair("packet.disk.p$partition_no.name", $files); |
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++$partition_no; |
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} |
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} |
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|
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} |
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# sub to find out the list of all (non-unique) usernames logged |
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# in to the machine and how many their are. (not |
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sub include_users() { |
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# Find out all users on this machine. |
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my($users) = `users`; |
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my(@users) = split(/\s+/, $users); |
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my($users_count) = $#users + 1; |
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my($users_list) = $users; |
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&print_pair("packet.users.count", $users_count); |
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&print_pair("packet.users.list", $users_list); |
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} |
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# sub to run a series of regexps on the output of 'top' to |
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# gather various machine statistics. |
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sub include_top() { |
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# Find out some numbers from top. |
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my(@top) = `top -d2 -s1 0`; |
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my($top) = join(" ", @top); |
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$top =~ s/\n//g; |
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&print_pair("packet.load.load1", $top =~ /load averages:\s*([^\s]+?),/); |
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&print_pair("packet.load.load5", $top =~ /load averages:\s*.+?,\s*([^\s]+?),/); |
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&print_pair("packet.load.load15", $top =~ /load averages:\s*.+?,\s*.+?,\s*([^\s]+?)\s*/); |
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&print_pair("packet.processes.total", $top =~ /([^\s]+?) processes:/); |
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&print_pair("packet.processes.sleeping", $top =~ / ([^\s]+?) sleeping/); |
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&print_pair("packet.processes.zombie", $top =~ / ([^\s]+?) zombie/); |
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&print_pair("packet.processes.stopped", $top =~ / ([^\s]+?) stopped/); |
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&print_pair("packet.processes.cpu", $top =~ /([^\s]+?)\s*on cpu/); |
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&print_pair("packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
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&print_pair("packet.cpu.user", $top =~ /([^\s]+?)% user/); |
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&print_pair("packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/); |
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&print_pair("packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/); |
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&print_pair("packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
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&print_pair("packet.memory.real", $top =~ /([^\s]+?)[MG] real/); |
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&print_pair("packet.memory.free", $top =~ /([^\s]+?)[MG] free/); |
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&print_pair("packet.memory.swap_in_use", $top =~ /([^\s]+?)[MG] swap in use/); |
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&print_pair("packet.memory.swap_free", $top =~ /([^\s]+?)[MG] swap free/); |
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} |
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# sub to get details of the machine's operating system. |
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sub include_osver() { |
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# Find out details about the operating system |
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# If these values remain undefined, then the print_pair |
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# function shall show the value to be the string "unknown". |
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my($os_name) = `uname -s`; |
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my($os_release) = `uname -r`; |
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my($os_platform) = `uname -m`; |
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my($os_sysname) = `uname -n`; |
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my($os_version) = `uname -v`; |
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&print_pair("packet.os.name", $os_name); |
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&print_pair("packet.os.release", $os_release); |
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&print_pair("packet.os.platform", $os_platform); |
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&print_pair("packet.os.sysname", $os_sysname); |
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&print_pair("packet.os.version", $os_version); |
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} |
