What are the basic file commands commonly used in Linux?

Help command

man man ls

help Get help information for viewing the shell’s built-in commands (cd)

Commonly used convenient construction

ctrl c Stop the process

ctrl l Clear the screen (clear) Completely clear the screen (reset)

File directory class

pwd: Display absolute path

ls【 Options]: Display the contents of all directories under the current file

Options: -a All files including hidden files

-l Long data list (equivalent to ll)

cd Path: Switch path

mkdir [Option] File name: Create a new folder

           Option: -p can create multi-layer directories

rmdir File name: Delete one Empty folder

touch File name: Create an empty file

cp [Option] Original file Destination file: Copy file operation

Option: -r Recursively copy the entire Folder

rm【Option】 File name: Delete file

Option: -r Recursively delete all contents of the directory

-f Force the deletion operation

                                                                                                                                                                                                                                        ## Turn page] [enter: next line]

                                                                                                                                                                                                                                                                                           Substring (searching up for the specified string)

echo: Output the content to the console

head [Option]: Display the file header information

Option: -n 5 Display 5 lines

tail [Option]: Display information at the end of the file

Option: -f Track all updates to the document in real time

Output redirection> Append> >

1) ls -al > File: Write the contents in the list to the file (overwrite)

echo Contents>> File Append the contents to the file

Soft connection

Establish a soft connection: ln -s It turns out that now

Delete the soft connection: rm -rf soft connection name rm -rf soft connection name/[real file directory It will also be deleted]

history View history command

date Display the current time

date %Y%m%d Display year, month and day %H %M %S hours, minutes and seconds

date -d '1 days ago': Display the time of the previous day

date -d '-1 days ago': Display the time of tomorrow

Set the system time

date -s "Standard format of time YY-MM-dd hh:mm:ss"

cal View calendar

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