Linux System Management _1.5 interacts with Linux _echo_nano_tab_whoami

[Email protected] ~]#

Where ' root ' is the login user name, ' IZKFV3ZMVCL0OMZ ' is the login hostname, ' ~ ' indicates that the current user is in the root user's home directory, ' # ' indicates that the current logged on user is the root user.

Usage: whoami [options] ...

Displays the user name associated with the current valid user ID.

? --help Display this command help information and exit

? --version Display command version information and exit

Usage:/bin/echo [options] ... [String] ... Or:/bin/echo long option

Echoes a STRING back to standard output.

? -n do not trailing line breaks

? -e enable escape function to interpret backslashes

? -e disables the escape function that interprets backslashes (default)

? --HELP Display this help message and exit

? --version display version information and exit

The nano command is not the same as the above two commands, this command has its own interface, we enter the nano at the command line, enter the Nano interface, we can enter the text at the cursor, we can use the arrow keys to move the cursor, you can also press Alt+m to open the mouse support to move the cursor:

After entering a paragraph of text, if you want to save, press Ctrl+o, fill in the file name, enter, display the word "written xx line", indicating that the file was saved successfully.

Linux double-press TAB 2 times to automatically complete the command or display all the matching commands

Linux System Management _1.5 interacts with Linux _echo_nano_tab_whoami