●查看硬件信息相关命令(8个)

ifconfig free fdisk ethtool mii-tool dmidecode dmesg lspci

●其它(19个)

echo printf rpm yum watch alias unalias date clear history eject time nohup nc xargs exec export unset type

●系统性能监视高级命令(12个)

uptime top free vmstat mpstat iostat sar chkconfig

内存:

top free vmstat mpstat iostat sar

CPU:

top vmstat mpstat iostat sar

I/O:

vmstat mpstat iostat sar

进程:

ipcs ipcrm lsof strace lstrace

负载:

uptime mount umount df du fsck dd dumpe2fs dump

●关机和查看系统信息的命令(3个)

shutdown halt init

●系统管理相关命令(8个)

uptime top free vmstat mpstat iostat sar chkconfig

●系统安全相关命令(10个)

chmod chown chgrp chage passwd su sudo umask chattr

命令这东西,要多练、多实操~