pwd | present working directory |
ls | List files in the directory |
cd | change the directory |
touch | Create an empty file |
echo | display the string |
echo -n | Display the string without newline |
echo “something” > file | Redirect the output of echo and create file |
echo “another thing” >> file | Append the string to the file |
mkdir | make a new directory |
cd ~ | home |
cd - | previous directory |
cd .. | parent directory |
ls -a | List all files including hidden files |
cd / | change to the root directory |
cat | Concatenate the file line by line and display it on the terminal |
less | Print the big file line by line |
vim <file> | open the editor with <file> {a: to go to the insert mode, <ESC> + :wq to write and quit } |
for var in {START..END}; do <COMMAND1>; <COMMAND2>;..; ; done | |
head <file> | display the first 10 lines of file |
tail <file> | display the last 10 lines of file |
head -n <file> | display first n lines of file |
tail -n <file> | display last n lines of file |
man <COMMAND> | Display manual of the COMMAND |