linux系统常见命令的使用收集
1.移动文件或者更改文件的名称： mv oldname(source file)  newname(goal file)  

2.删除文件：rm -r filename

3.远程从本地向目标电脑传送文件: scp -r sourcefile(url) ip（目标地址）:/root。有时候这个命令不好用，会出现类似下面的提示：@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
bc:32:e9:50:52:6f:ed:f6:44:ef:0d:31:6b:1b:dd:49.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:4

解决办法：先运行下面的命令：mv /root/.ssh/known_hosts /tmp，然后在运行scp命令

4.远程登录到别人电脑上： ssh -l root(表示以root身份登录到别人电脑上) ip

5.创建一个新的文件夹: mkdir filename