Shell script原文：http://bash.cyberciti.biz/monitoring/freebsd-linux-system-information/
该shell脚本可以显示FreeBSD/Linux系统基本信息，如主机名，操作系统版本，内核版本，CPU/内存，网络状态，进入系统的用户，磁盘状态，运行级别等
下面是该shell脚本的源代码：
#!/bin/bash
# Shell script to General FreeBSD and Linux System information such as:
# Hostname, OS version, Kernel version, Processor/CPU, Total RAM,
# System load, network interface, total logged in users, Hard disks,
# Runlevel etc. I will write separate scripts for detailed system
# information :D
# Copyright (c) 2005 nixCraft project
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
SPATH="/usr/local/etc/bashmonscripts"
INITBMS="$SPATH/defaults.conf"
[ ! -f $INITBMS ] && exit 1 || . $INITBMS
echo "Hostname:" $(getHostName)
echo "OS Name:" $($UNAME)
echo "OS Version:" $($UNAME -mr)
echo "Processor:" $(getCpuInfo)
echo "Total Physical Memory (RAM):" $(getRealRamInfo)
echo "System Load:" $(getSystemLoad)
echo "Date & Time:" $($DATE)
echo "Network interface:" $(getNumberOfInterfaces)
echo "Total logged in users:" $(getNumberOfLoggedInUsers)
echo "Total running process:" $(getNumberOfRunningProcess)
echo "Total SCSI/IDE disks:" $(getDiskDrives)
echo "Mounted partitions:" $(getNumberOfParittions)
echo "Loaded dynamic kernel modules/drivers:" $(getNumberOfKernelModules)
echo "OS Rulevel:" $(getOsRunLevel) |