Linux

Linux系统信息查看命令大全

http://tech.idv2.com/2008/01/11/linux-sysinfo-cmds/

查看apache连接数

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

linux设置时区

设置时区,首先编辑/etc/sysconfig/clock文件
#vi /etc/sysconfig/clock
ZONE="Asia/Shanghai"
然后
cp /usr/share/zoneinfo/$timezone /etc/localtime 例如
# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
重新启动使设置生效

参考:http://www.xxlinux.com/linux/article/accidence/technique/20071212/13248.html

linux 时间同步

# ntpdate time.nist.gov

还有:
time.windows.com
asia.pool.ntp.org
time-nw.nist.gov
time-a.nist.gov
time-b.nist.gov
clepsydra.dec.com