Sysinfo for *NIX

sysinfo.pl

#!/usr/bin/perl -w
#
# Copyright (c) 2002, 2003 David Rudie
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#

# Modifications to this script from version 2.78 on are
# Copyright (C) 2003-2005 Travis Morgan
#
# Modifications to this script from version 3.0+ are
# Copyright (C) 2020 Aaron Blakely <[email protected]>
#
# Changes:
#  2/13/20 - Fixed /proc/meminfo parser
#

use POSIX qw(floor);
use strict;


# Set up the arrays and variables first.
use vars qw(
  @arr
  @arr1
  @arr2
  $cpu
  @cpu
  @cpuinfo
  $data
  $distro
  $distrov
  @distros
  @data
  $df
  @dmesgboot
  @hinv
  @meminfo
  $mhz
  @mhz
  $model
  @netdev
  @netstat
  @nic
  @nicname
  $smp
  @smp
  $stream
  $sysctl
  @uptime
  $var
  $vara
  $varb
  $varc
  $vard
  $varh
  $varm
  $varp
  $varx
  $vary
  $varz
  $col1
  $col2
);


# Specify your NIC interface name (eth0, rl0, fxp0, etc) and a name for it.
#
# Example: @nic     = ('eth0', 'eth1');
#          @nicname = ('External', 'Internal');
#
# NOTE: If you set one then you HAVE to set the other.
@nic            = ('');
@nicname        = ('');

$col1 = '';
$col2 = '';

# These are the default settings for which information gets displayed.
# 0 = Off; 1 = On
my $showConsole         = 0;
my $showConsoleTopCPU   = 1;
my $showHostname        = 1;
my $showOS              = 1;
my $showCPU             = 1;
my $showProcesses       = 1;
my $showUptime          = 1;
my $showLoadAverage     = 1;
my $showBattery         = 0;  # Requires APM and /proc/apm
my $showMemoryUsage     = 1;
my $showDiskUsage       = 1;
my $showNetworkTraffic  = 0;
my $showUsers           = 1;
my $showDistro          = 1;

# Console output color.
# Black   = 30 # Red     = 31 # Green   = 32 # Yellow  = 33
# Blue    = 34 # Magenta = 35 # Cyan    = 36 # Grey    = 37
my $normBright  = '0';
my $normColour  = '32';

my $miscBright  = '1';
my $miscColour  = '30';

my $warnBright  = '1';
my $warnColour  = '33';

my $critBright  = '1';
my $critColour  = '31';


###############################################
### Nothing below here should need changed. ###
###############################################


my $clear = "";
my $crit = "ritBright;$critColour"."m";
my $misc = "iscBright;$miscColour"."m";
my $norm = "ormBright;$normColour"."m";
my $warn = "arnBright;$warnColour"."m";


my $sysinfoVer  = '3.0';
my $sysinfoDate = 'Feb 13, 2020';


my $os          = `uname -s`; chomp($os);
my $osn         = `uname -n`; chomp($osn); $osn =~ s/([^\.]*).*/$1/;
my $osv         = `uname -r`; chomp($osv);
my $osm         = `uname -m`; chomp($osm);
my $uname       = "$os $osv/$osm";


my $darwin      = 1 if $os =~ /^Darwin$/;
my $freebsd     = 1 if $os =~ /^FreeBSD$/;
my $linux       = 1 if $os =~ /^Linux$/;
my $netbsd      = 1 if $os =~ /^NetBSD$/;
my $openbsd     = 1 if $os =~ /^OpenBSD$/;
my $irix        = 1 if $os =~ /^IRIX$/;
my $irix64      = 1 if $os =~ /^IRIX64$/;


my $alpha       = 1 if $osm =~ /^alpha$/;
my $armv4l      = 1 if $osm =~ /^armv4l$/;
my $armv5l      = 1 if $osm =~ /^armv5l$/;
my $i586        = 1 if $osm =~ /^i586$/;
my $i686        = 1 if $osm =~ /^i686$/;
my $ia64        = 1 if $osm =~ /^ia64$/;
my $mips        = 1 if $osm =~ /^mips$/;
my $parisc64    = 1 if $osm =~ /^parisc64$/;
my $ppc         = 1 if $osm =~ /^ppc$/;
my $x86_64      = 1 if $osm =~ /^x86_64$/;


my $d700 = 1 if $osv =~ /^7\.0\.0/;
my $l26 = 1 if $osv =~ /^2\.6/;


my $showConsoleTrig = $ARGV[0];
if($showConsoleTrig) {
  if($showConsoleTrig eq '-c' || $showConsoleTrig eq '--console') {
    $showConsole = 1;
    $showConsoleTopCPU = 1;
  } elsif($showConsoleTrig eq '-v' || $showConsoleTrig eq '--version') {
    print "sysinfo v$sysinfoVer   $sysinfoDate\n\n";
    print "original version - Copyright (C) 2002-2003 David Rudie <david\@inexistent.com>\n";
    print "Modifcations for v2.78.10 - Copyright (C) 2003-2005 Travis Morgan\n";
    print "Modifcations for v3.0 - Copyright (C) 2020 Aaron Blakely (http://github.com/ablakely)\n\n";
    exit -1;
  }
}


if($linux) {
  @cpuinfo              = &openfile("/proc/cpuinfo");
  @meminfo              = &openfile("/proc/meminfo");
  @netdev               = &openfile("/proc/net/dev");
  @uptime               = &openfile("/proc/uptime");
} elsif($irix || $irix64) {
  @hinv                 = `hinv`;
} else {
  @dmesgboot            = &openfile("/var/run/dmesg.boot");
  @netstat              = `netstat -ibn`;
  if($darwin) {
    $sysctl             = '/usr/sbin/sysctl';
  } else {
    $sysctl             = '/sbin/sysctl';
  }
}


if($armv4l || $armv5l) {
  $df                   = 'df -k';
  $showConsoleTopCPU    = 0;
} else {
  if($linux) {
    $df                 = 'df -kP';
  } else {
    $df                 = 'df -k';
  }
}

if($linux && $showDistro) {
        @distros = (
        "Gentoo",               "/etc/gentoo-release",
        "Fedora Core",  "/etc/fedora-release",
        "Slackware",    "/etc/slackware-version",
        "Cobalt",               "/etc/cobalt-release",
        "Debian",               "/etc/debian_version",
        "Mandrake",             "/etc/mandrake-release",
        "Mandrake",             "/etc/mandrakelinux-release",
        "Yellow Dog",   "/etc/yellowdog-release",
        "Red Hat",              "/etc/redhat-release"
        );
        $distro = "";
        $distrov = "";
        do {
                if (-e $distros[1]) {
                        $distro = $distros[0];
                        $distrov = `cat $distros[1]`;
                        chomp($distrov);
                        $distrov =~ s/[^0-9]*([0-9.]+)[^0-9.]{0,1}.*/$1/;
                }
                shift @distros; shift @distros;
        } until (scalar @distros == 0) || (length $distro > 0);
}

if($showCPU) {
  if($freebsd) {
    if($alpha) {
      @cpu              = grep(/^COMPAQ/, @dmesgboot);
      $cpu              = join("\n", $cpu[0]);
    } else {
      @cpu              = grep(/CPU: /, @dmesgboot);
      $cpu              = join("\n", @cpu);
      $cpu              =~ s/Warning:.*disabled//;
      @cpu              = split(/CPU: /, $cpu);
      $cpu              = $cpu[1];
      chomp($cpu);
      @smp              = grep(/ cpu/, @dmesgboot);
      $smp              = scalar @smp;
    }
  }
  if($netbsd) {
    if($alpha) {
      @cpu              = grep(/^COMPAQ/, @dmesgboot);
      $cpu              = join("\n", $cpu[0]);
      @cpu              = split(/, /, $cpu);
      $cpu              = $cpu[0];
    } else {
      @cpu              = grep(/cpu0: /, @dmesgboot);
      @cpu              = grep(!/apic/, @cpu);
      $cpu              = join("\n", $cpu[0]);
      @cpu              = split(/: /, $cpu);
      $cpu              = $cpu[1];
      @smp              = grep(/cpu\d+:/, @dmesgboot);
      @smp              = grep(/MHz/, @smp);
      $smp              = scalar @smp;
    }
  }
  if($openbsd) {
    @cpu                = grep(/cpu0: /, @dmesgboot);
    @cpu                = grep(/[M|G]Hz/, @cpu);
    $cpu                = join("\n", @cpu);
    @cpu                = split(/: /, $cpu);
    $cpu                = $cpu[1];
  }
  if($irix || $irix64) {
    @cpu                = grep(/CPU:/, @hinv);
    $cpu                = join("\n", @cpu);
    $cpu                =~ s/^.*(R[0-9]*) .*$/$1/;
    @mhz                = grep(/MHZ/, @hinv);
    $mhz                = join("\n", @mhz);
    $mhz                = $mhz[0];
    $mhz                =~ s/^.* ([0-9]*) MHZ.*$/$1/;
    @smp                = grep(/ IP/, @hinv);
    $smp                = $smp[0];
        $smp            =~ s/^([0-9]*) .*$/$1/;
        chomp($smp);
    chomp($cpu);
    chomp($mhz);
    $cpu                = "MIPS $cpu ($mhz MHz)";
  }
  if($linux) {
    if($alpha) {
      $cpu              = &cpuinfo("cpu\\s+: ");
      $model    = &cpuinfo("cpu model\\s+: ");
      $cpu              = "$cpu $model";
      $smp              = &cpuinfo("cpus detected\\s+: ");
    }
    if($armv4l || $armv5l) {
      $cpu              = &cpuinfo("Processor\\s+: ");
    }
    if($i686 || $i586 || $x86_64) {
      $cpu              = &cpuinfo("model name\\s+: ");
      $cpu              =~ s/(.+) CPU family\t+\d+MHz/$1/g;
      $cpu              =~ s/(.+) CPU .+GHz/$1/g;
      $mhz              = &cpuinfo("cpu MHz\\s+: ");
      $cpu              = "$cpu ($mhz MHz)";
      @smp              = grep(/processor\s+: /, @cpuinfo);
      $smp              = scalar @smp;
    }
    if($ia64) {
      $cpu              = &cpuinfo("vendor\\s+: ");
      $model    = &cpuinfo("family\\s+: ");
      $mhz              = &cpuinfo("cpu MHz\\s+: ");
      $mhz              = sprintf("%.2f", $mhz);
      $cpu              = "$cpu $model ($mhz MHz)";
      @smp              = grep(/processor\s+: /, @cpuinfo);
      $smp              = scalar @smp;
    }
    if($mips) {
      $cpu              = &cpuinfo("cpu\\s+: ");
      $model    = &cpuinfo("cpu model\\s+: ");
      $cpu              = "$cpu $model";
    }
    if($parisc64) {
      $cpu              = &cpuinfo("cpu\\s+: ");
      $model    = &cpuinfo("model name\\s+: ");
      $mhz              = &cpuinfo("cpu MHz\\s+: ");
      $mhz              = sprintf("%.2f", $mhz);
      $cpu              = "$model $cpu ($mhz MHz)";
    }
    if($ppc) {
      $cpu              = &cpuinfo("cpu\\s+: ");
      $mhz              = &cpuinfo("clock\\s+: ");
      if($cpu =~ /^9.+/) {
        $model          = "IBM PowerPC G5";
      } elsif($cpu =~ /^74.+/) {
        $model          = "Motorola PowerPC G4";
      } else {
        $model          = "IBM PowerPC G3";
      }
      $cpu              = "$model $cpu ($mhz)";
    }
    $cpu                =~ s/^\s+//;
    $cpu                =~ s/ +/ /g;
  } elsif($darwin) {
    $cpu                = `hostinfo | grep 'Processor type' | cut -f2 -d':'`; chomp($cpu);
    $cpu                =~ s/^\s*(.+)\s*$/$1/g;
    if($cpu =~ /^ppc7.+/) {
      $cpu              = "Motorola PowerPC G4";
    }
    $mhz                = `$sysctl -n hw.cpufrequency`; chomp($mhz);
    $mhz                = sprintf("%.2f", $mhz / 1000000);
    $cpu                = "$cpu ($mhz MHz)";
    $smp                = `hostinfo | grep "physically available" | cut -f1 -d' '`; chomp($smp);
  }
  $cpu          =~ s/ +/ /g;
  $cpu          =~ s/^ //;
  if($smp && $smp gt 1) {
    $cpu = "$smp x $cpu";
  }
}


if(!$showConsole) {
  my $output;
  if($showHostname)             { $output  = $col1."Hostname".$col2.": ".$col1.$osn.$col2." - "; }
  if($showOS)                   { $output .= $col1."OS".$col2.": ".$col1.$uname.$col2." - "; }
  if($linux && $showDistro && length $distro > 0 )      {
          $output .= $col1."Distro".$col2.": ".$col1.$distro;
          if (length $distrov > 0) {
                  $output .= " ".$distrov;
          }
          $output .= $col2." - ";
  }
  if($showCPU)                  { $output .= $col1."CPU".$col2.": ".$col1.$cpu.$col2." - "; }
  if($showProcesses)            { $output .= $col1."Processes".$col2.": ".$col1.&processes.$col2." - "; }
  if($showUptime)               { $output .= $col1."Uptime".$col2.": ".$col1.&uptime.$col2." - "; }
  if($showUsers)                { $output .= $col1."Users".$col2.": ".$col1.&users.$col2." - "; }
  if($showLoadAverage)          { $output .= $col1."Load Average".$col2.": ".$col1.&loadaverage.$col2." - "; }
  if($showBattery)              { $output .= $col1."Battery".$col2.": ".$col1.&battery.$col2." - "; }
  if($showMemoryUsage)          { $output .= $col1."Memory Usage".$col2.": ".$col1.&memoryusage.$col2." - "; }
  if($showDiskUsage)            { $output .= $col1."Disk Usage".$col2.": ".$col1.&diskusage; }
  if($showNetworkTraffic)       { $output .= "\n".&networktraffic; }
  $output =~ s/ - $//g;
  print "$output\n";
} elsif($showConsole) {
  if($showHostname) {
    print &consoleprint("System Information").$osn."\n";
  } else {
    print "System Information\n";
  }
  print "-----------------------------------------------------------\n";
  if($showOS) {
    print &consoleprint("Operating System").$uname."\n";
  }
  if($showCPU) {
    print &consoleprint("CPU").$cpu."\n";
  }
  if($linux && $showDistro && length $distro > 0) {
          print &consoleprint("Distro").$distro." ".$distrov."\n";
  }
  if($showProcesses) {
    print &consoleprint("Processes").&processes."\n";
  }
  if($showUptime) {
    print &consoleprint("Uptime").&uptime."\n";
  }
  if($showLoadAverage) {
    print &consoleprint("Load Average").&loadaverageconsole."\n";
  }
  if($showUsers) {
    print &consoleprint("Users").&users."\n";
  }
  if($showBattery) {
    print &consoleprint("Battery").&batteryconsole."\n";
  }
  if($showConsoleTopCPU) {
    print &consoleprint("Top CPU Process").&topcpuprocess."\n";
  }
  if($showMemoryUsage) {
    print &consoleprint("Memory Usage").&memoryusageconsole."\n";
  }
  if($showDiskUsage) {
    print &consoleprint("Disk Usage").&diskusageconsole."\n";
  }
  if($showNetworkTraffic) {
    print &networktrafficconsole;
  }
  print $clear;
} else {
  print 'Invalid option specified.'."\n";
}


sub battery {
  $data = "";
  if(open(FD, '/proc/apm')) {
    while($stream = <FD>) {
      $data .= $stream;
      @data = split(/\n/, $data);
    }
    close(FD);
  }
  $data = $data[0];
  $data =~ s/.+\s(\d+%).+/$1/;
  return $data;
}


sub batteryconsole {
  $var = &battery;
  $var =~ s/(\d+)%/$1/;
  if($var <= '15') {
    $var = $crit.$var."%".$clear;
  } elsif($var <= '30') {
    $var = $warn.$var."%".$clear;
  } else {
    $var = $var."%";
  }
  return $var;
}


sub consoleprint {
  my $string = shift;
  return "$norm$string$clear$misc:$clear ";
}


sub cpuinfo {
  my $string = shift;
  @arr = grep(/$string/, @cpuinfo);
  $var = join("\n", $arr[0]);
  @arr = split(/: /, $var);
  $var = $arr[1];
  return $var;
}


sub diskusage {
  if($irix || $irix64) {
    $vara = `$df | grep dev | awk '{ sum+=\$3 / 1024 / 1024}; END { print sum }'`; chomp($vara);
    $vard = `$df | grep dev | awk '{ sum+=\$4 / 1024 / 1024}; END { print sum }'`; chomp($vard);
  } else {
    $vara = `$df | grep dev | awk '{ sum+=\$2 / 1024 / 1024}; END { print sum }'`; chomp($vara);
    $vard = `$df | grep dev | awk '{ sum+=\$3 / 1024 / 1024}; END { print sum }'`; chomp($vard);
  }
  $varp = sprintf("%.2f", $vard / $vara * 100);
  $vara = sprintf("%.2f", $vara);
  $vard = sprintf("%.2f", $vard);
  return $vard."GB/".$vara."GB ($varp%)";
}


sub diskusageconsole {
  $var = &diskusage;
  $vara = $var;
  $varp = $var;
  $vara =~ s/(.+)\(.+%\)/$1/;
  $varp =~ s/.+\((.+)%\)/$1/;
  if($varp >= 90) {
    $var = "$vara$crit($clear$varp\%$crit)$clear";
  } elsif($varp >= 75) {
    $var = "$vara$warn($clear$varp\%$warn)$clear";
  } else {
    $var = "$vara$misc($clear$varp\%$misc)$clear";
  }
}


sub users {
    $var = `uptime`;chomp($var);
    $var =~ s/^.* +(.*) user.*$/$1/;
    return $var;
}


sub loadaverage {
  $var = `uptime`; chomp($var);
  if($irix || $irix64 || $linux) {
    @arr = split(/average: /, $var, 2);
  } else {
    @arr = split(/averages: /, $var, 2);
  }
  if($d700 || $darwin) {
    @arr = split(/ /, $arr[1], 2);
  } else {
    @arr = split(/, /, $arr[1], 2);
  }
  $var = $arr[0];
  return $var;
}


sub loadaverageconsole {
  $var = &loadaverage;
  if($var >= '1.00') {
    $var = "$crit$var$clear";
  } elsif($var >= '0.85') {
    $var = "$warn$var$clear";
  }
  return $var;
}


sub meminfo {
  my $string = shift;

  foreach my $line (@meminfo) {
    if ($line =~ /^\Q$string:/) {
      $var = $line;
      $var =~ s/\s+//gs;
      $var =~ s/kB//gs;
      $var =~ s/^\Q$string://gs;

      return $var;
    }
  }
}


sub memoryusage {
  if($linux) {
    #if($l26) {
      $vara = &meminfo("MemTotal") * 1024;
      $varb = &meminfo("Buffers") * 1024;
      $varc = &meminfo("Cached") * 1024;
      $vard = &meminfo("MemFree") * 1024;
  } elsif($darwin) {
    $vard = `vm_stat | grep 'Pages active' | awk '{print \$3}'` * 4096;
    $vara = `$sysctl -n hw.physmem`;
  } elsif($irix || $irix64) {
    $var = `top -d1 | grep Memory`; chomp($var);
    $vara = $var;
    $vard = $var;
    $vara =~ s/^.* ([0-9]*)M max.*$/$1/;
    $vara *= 1024 * 1024;
    $vard =~ s/^.* ([0-9]*)M free,.*$/$1/;
    $vard = $vara - ($vard * 1024 * 1024);
  } else {
    $vard = `vmstat -s | grep 'pages active' | awk '{print \$1}'` * `vmstat -s | grep 'per page' | awk '{print \$1}'`;
    $vara = `$sysctl -n hw.physmem`;
  }
  $varp = sprintf("%.2f", $vard / $vara * 100);
  $vara = sprintf("%.2f", $vara / 1024 / 1024);
  $vard = sprintf("%.2f", $vard / 1024 / 1024);
  return $vard."MB/".$vara."MB ($varp%)";
}


sub memoryusageconsole {
  $var = &memoryusage;
  $vara = $var;
  $varp = $var;
  $vara =~ s/(.+)\(.+%\)/$1/;
  $varp =~ s/.+\((.+)%\)/$1/;
  if($varp >= 90) {
    $var = "$vara$crit($clear$varp\%$crit)$clear";
  } elsif($varp >= 75) {
    $var = "$vara$warn($clear$varp\%$warn)$clear";
  } else {
    $var = "$vara$misc($clear$varp\%$misc)$clear";
  }
  return $var;
}


sub networkinfobsd {
  $varc = shift;
  $vard = shift;
  @arr = grep(/$varc/, @netstat);
  @arr = grep(/Link/, @arr);
  $var = join("\n", @arr);
  @arr = split(/\s+/, $var);
  $var = $arr[$vard] / 1024 / 1024;
  $var = sprintf("%.2f", $var);
  return $var;
}


sub networkinfolinux {
  $varc = shift;
  $vard = shift;
  @arr = grep(/$varc/, @netdev);
  $var = join("\n", @arr);
  @arr = split(/:\s*/, $var);
  @arr = split(/\s+/, $arr[1]);
  $var = $arr[$vard] / 1024 / 1024;
  $var = sprintf("%.2f", $var);
  return $var;
}


sub networktraffic {
  $vara = 0;
  $varb = scalar @nic;
  if($nic[$vara] ne "") {
    while($vara lt $varb) {
      if($nic[$vara] ne "") {
        if($darwin || $freebsd) {
          $varx = &networkinfobsd($nic[$vara], 6);
          $vary = &networkinfobsd($nic[$vara], 9);
        }
        if($netbsd || $openbsd) {
          $varx = &networkinfobsd($nic[$vara], 4);
          $vary = &networkinfobsd($nic[$vara], 5);
        }
        if($linux) {
          $varx = &networkinfolinux($nic[$vara], 0);
          $vary = &networkinfolinux($nic[$vara], 8);
        }
        if ($vara ne 0)
                {
                        $varz .= $col2." - ";
                }
                $varz .= $col1.$nicname[$vara]." Traffic ".$col2."(".$col1.$nic[$vara].$col2."): ".$col1.$varx.$col1."MB In".$col2."/".$col1.$vary."MB Out ";
      }
      $vara++;
    }
    return $varz;
  }
}


sub networktrafficconsole {
  $var = &networktraffic;
  @arr = split(/ - /, $var);
  $varx = 0;
  $vary = scalar @arr;
  $varz = '';
  while($varx lt $vary) {
    $vara = $arr[$varx];
    $varb = $arr[$varx];
    $varc = $arr[$varx];
    $vara =~ s/(.+) Traffic \(.+\): .+/$1/;
    $varb =~ s/.+ Traffic \((.+)\): .+/$1/;
    $varc =~ s/.+ Traffic \(.+\): (.+)/$1/;
    $varc =~ s/(.+)\/(.+)/$1$misc\/$clear$2/;
    $varz .= "$norm$vara Traffic $clear$misc($clear$varb$misc):$clear $varc\n";
    $varx++;
  }
  return $varz;
}


sub openfile {
  my $string = shift;
  $data = "";
  if(open(FD, $string)) {
    while($stream = <FD>) {
      $data .= $stream;
      @data = split(/\n/, $data);
    }
    close(FD);
  }
  return @data;
}


sub processes {
  if($irix || $irix64) {
    $var = `ps -e | grep -v PID | wc -l`;
  } else {
    $var = `ps ax | grep -v PID | wc -l`;
  }
  chomp($var);
  $var = $var;
  $var =~ s/^\s+//;
  $var =~ s/\s+$//;
  return $var;
}


sub topcpuprocess {
  if($irix || $irix64 || $linux) {
    $var = `ps -eo pcpu,pid,user,args | grep -v '\%CPU' | sort | tail -n 1`; chomp($var);
    $var =~ s/^\s*//g;
    @arr = split(/\s+/, $var);
    $vara = $arr[0];
    $varb = $arr[1];
    $varc = $arr[2];
    $vard = $arr[3];
  } else {
    $var = `ps auxwwwr | head -n 2 | tail -n 1`; chomp($var);
    @arr = split(/\s+/, $var);
    $vara = $arr[2];
    $varb = $arr[1];
    $varc = $arr[0];
    $vard = $arr[10];
  }
  if($vara >= 90) {
    $var = "$vard $misc($clear$varb$misc/$clear$varc$misc)$clear = $crit$vara$clear%";
  } elsif($vara >= 75) {
    $var = "$vard $misc($clear$varb$misc/$clear$varc$misc)$clear = $warn$vara$clear%";
  } else {
    $var = "$vard $misc($clear$varb$misc/$clear$varc$misc)$clear = $vara%";
  }
}


sub uptime {
  if($irix || $irix64) {
    $var = `uptime`; chomp($var);
    if($var =~ /day/) {
      $var =~ s/^.* ([0-9]*) day.* ([0-9]*):([0-9]*), .*$/$1d $2h $3m/;
    } elsif($var =~/min/) {
      $var =~ s/^.* ([0-9]*) min.*$/0d 0h $1m/;
    } else {
      $var =~ s/^.* ([0-9]*):([0-9]*),.*$/0d $1h $2m/;
    }
    return $var;
  } else {
    if($freebsd) {
      $var = `$sysctl -n kern.boottime | awk '{print \$4}'`;
    }
    if($netbsd || $openbsd || $darwin) {
      $var = `$sysctl -n kern.boottime`;
    }
    if($linux) {
      @arr = split(/ /, $uptime[0]);
      $varx = $arr[0];
    } else {
      chomp($var);
      $var =~ s/,//g;
      $vary = `date +%s`; chomp($vary);
      $varx = $vary - $var;
    }
    $varx = sprintf("%2d", $varx);
    $vard = floor($varx / 86400);
    $varx %= 86400;
    $varh = floor($varx / 3600);
    $varx %= 3600;
    $varm = floor($varx / 60);
    if($vard eq 0) { $vard = ''; } elsif($vard >= 1) { $vard = $vard.'d '; }
    if($varh eq 0) { $varh = ''; } elsif($varh >= 1) { $varh = $varh.'h '; }
    if($varm eq 0) { $varm = ''; } elsif($varm >= 1) { $varm = $varm.'m'; }
    return $vard.$varh.$varm;
  }
}