Lesson 4 SSH

1, For exiting the server ctrl-d

2, Create your own files if you don't have them

3,

ssh [email protected] ls -a

The execution is server-side

ls -a

The execution is local

4,

#  In single quotes $i Can be evaluated 
ssh myserver 'for ((i = 0; i < 10; i ++ )) do echo $i; done'

The standard output of the command executed in the remote server will be transmitted to the current terminal

5,

#  In double quotation marks $i You can't evaluate 
ssh myserver "for ((i = 0; i < 10; i ++ )) do echo $i; done"

Variables in double quotation marks will not be resolved

6, Files can be transferred between servers with the help of local intermediate tools