linux centos归档压缩

常用命令
poweroff shutdown (man shutdown)
reboot sync su
文件和目录管理相关的命令
pwd ls cd (. .. ~ -) head tail cat/tac
touch(根据文件名是否存在分两种情况) rm rmdir(空目录) mkdir cp mv eoch more/less stat cut
*vim date cal which file du diff sort find wc