File path representation
Absolute path: starting from / (also known as root directory), eg: / data1 / sherry
Relative path: eg: ./data/
. Represents the user's current directory
.. indicates the superior directory
~ Indicates the current user's own home directory
~ USER indicates the home directory with user name USER
Log in remote server
ssh -p [port_number] [yourUserName]@1.tcp.ngrok.io:[yourOwnDir]
Transfer files between server and local computer
local --> server:
scp [-p] [port_number] local_file [email protected]: remote_file
scp local_file remote_username @ remote_ip: remote_file # specifies the file name
scp local_file remote_username @ remote_ip: remote_folder #only specifies the remote directory, the file name is not Change
scp -r local_folder remote_username @ remote_ip: remote_folder # copy folder
server --> local:
scp [-p] [port_number] remote_username@remote_ip:remote_file local_file