help
exit
cd [目录]
dir
md [目录名]
rd [目录名]
copy [源文件] [目标文件]
move [源文件] [目标文件]
del [文件名]
type [文件名]
ren [旧文件名] [新文件名]
attrib [文件名]
start [程序名]
tasklist
netstat
ipconfig
ping [目标IP地址]
tracert [目标IP地址]
nslookup [域名]
regedit