Summary of common commands in Shell

author| Genius idiot dream source| Blog Park

1 ls command: list files

ls -la Lists all files and folders in the current directory

ls a* Lists all files in the current directory that begin with the letter a

ls -l *.txt Lists all files in the current directory with the suffix txt

2 cp Command: Copy

cp a.txt b.txt : copy the contents of file a to file b

cp a.txt ./ test : copy file a to text directory

cp -a test test2: recursively copy all files (including hidden files) under the directory test to the new directory test2

3 cat command: view combined files

cat a.txt: View the contents of the file

cat a.txt >> b.txt: Combine the contents of file a to the end of the contents of file b

cat-n a.txt: View files and label them with line numbers

4 touch command: create file

touch a.txt: Create a txt file named a

5 rm command: delete files

rm-rf a.txt: Force deletion of file a.txt

tm-i a.txt: there will be a prompt before deleting the file. Are you sure to delete the file?

6 mkdir command: Create directory

mkdir test: Create a directory named test

7 rmdir command: delete directory

tmdir test: Delete a directory

8 echo, cat commands: add content

echo "hello world! " >> a.txt: Add content to file a

cat a.txt : You can add multiple lines to the end of the file itself

cat