


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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