Linux Common commands

File and folder operations

List the files and folders in the current directory: LS (to the effect: LiSt)

Green indicates executable file , blue indicates folder , white indicates normal file

Lists the file and folder details list under directory: Ls-l

Lists all files and folders under the directory, including hidden files, where the file name begins with a dot: ls-a

Lists all file and folder details under the directory, including hidden files: Ls-la or Ls-al (a may represent all)

Switch directory: CD [-P] (-p = Path parameter)

Return to Parent directory: CD.

Displays the location (or path) of the current folder (or directory): PWD (to the effect: print working directory)

Delete file: RM [-P]

Delete folder: Rm-r [path] (-r = recursively delete the contents of the folder, recursive English recursion)

System-related commands

View process: Top

Press the z key to see more clearly the current process changes

Press the Q key to exit the process view

View all processes: PS aux

Using the pipeline filtering process: PS aux | grep SSH (Filters the process that contains the SSH field. | As a symbol of the pipeline, the result of the left command is passed to the right of the pipe as input.

View current network conditions: ifconfig

Rebooting the system network: SYSTEMCTL restart

VI Editor

Open VI Editor: VI

Exit VI: Input: Q

Use VI to view files: VI [path]

Press the I key to enter edit mode

Save after editing: Press ESC to enter: WQ Press the ENTER key

Do not save after editing: Press ESC to enter: Q Press the ENTER key

Linux Common commands