Learn Linux terminal commands

Open terminal: Ctrl+Alt+T
Tab completion: tab, tab X 2
Switch windows: Alt+Tab
Switch languages: Sup+Space
Previous commands: up arrow
Recent commands: Ctrl+R
Stop the current command: Ctrl+C
Exit session: Ctrl+D
Copy: Ctrl+Shift+C
Clear the terminal: Ctrl+L
Repeat last command: !!
Stop the current command: Ctrl+Z
Paste: Ctrl+Shift+V
Clear: $ clear
Detailed list: $ ls -l
Including hidden: $ ls -a
List by time: $ ls -t
Compress to gzip: $ tar -zcvf archive.tar.gz dir_to_compress
Uncompress tar: $ tar -tf archive.tar
Uncompress gzip: $ gzip -d archive.gz
Uncompress tar gzip: $ tar -ztf archive.tar.gz
Uncompress tar gzip: $ tar -C destination_dir -xvf archive.tar.gz
Uncompress bzip2: $ bzip2 -jtf archive.tar.bz2
Compress zip: $ zip dir_to_compress
Uncompress zip: $ unzip archive.zip
Start Apache:$ service apache2 start
Restart Apache:$ service apache2 restart
Set privileges recursively: $ chmod -R 755 dir
Set privileges on a file: $ chmod 644 file
Set ownership on a file: $ chown username:group file
Set user on a file: $ chown username file
Set group on a file: $ chown :group file
Set ownership recursively: $ chown -R username:group directory
Download file to dir: $ wget https://example.com/file-name dir-name
Open directory in the file manager: $ gnome-open dir-name/
Create a file: $ touch file_name
Create a directory: $ mkdir dir_name
Copy file to directory: $ cp file to_folder
Copy directory A to directory B: $ cp -r from_folder to_folder
Move file to directory: $ mv file to_folder
Rename: $ mv original_name new_name
Remove recursively: $ rm -rf folder
Symlink: $ ln -s real_location link_location
Hard link: $ ln real_location link_location
Where am I? $ pwd
Home: $ ~
Navigate to directory: $ cd directory_name
Read a file: $ cat file-name
Read a file with arrow navigation: $ less file-name
Show the first 15 lines: $ head -n 15 file-name
Show the last 15 lines: $ tail -n 15 file-name
Save file : w
Quit if no changes were made : q
Quit file without saving : q!
Save file and quit : wq
Connect a remote server: $ ssh -l domain-user example.com
Find file by name: $ find /~ -name "file_name"
Find file by type: $ find /~ -name "*.txt"
Install software: $ sudo apt-get install software_name
Ping a domain: $ ping ip-address
Current date and time: $ date
Show command info: $ man command-name
Show the latest commands: $ history
Import database: $ mysql -u user_name -p -h localhost db_name < file_name.sql