Some useful Ubuntu commands

Ubuntu commons

1. Install a package: sudo apt-get install package_name.
2. Remove file:
3. rm something.mp3 anotherfile.mp4, if permission is required, prepend the command with sudo
4. rm -f myfile.mp3: -f means “force” and you don’t need to confirm once time again to delete the file.
5. You can use rm {first,second}.mp3 to remove a list of files with the same extension.
6. Using wildcard * to delete the files map with the rule: rm *.mp3, rm hala*.mp3, etc.
7. rm path/to/dir -R to remove a directory.
8. Create a file: touch filename.mp3
9. Open a file: gedit filename.txt

10. Extract *.gz file:

    • tar -xvzf file-name.tar.gz with a couple things:
      f: this must be the last flag of the command, and the tar file must be immediately after. It tells tar the name and path of the compressed file.
      z: tells tar to decompress the archive using gzip
      x: tar can collect files or extract them. x does the latter.
      v: makes tar talk a lot. Verbose output shows you all the files being extracted.
      For simply you can only use tar -xf file-name.tar.gz.
    • In case you want to extact the file to the other path, use this: tar -xvzf file-name.tar.gz -C extract/to/this/path
11. Open a file to edit in Text Editor: gedit file-name.txt
12. Compress a folder: sudo apt-get install zip (if zip has not been installed yet) zip -r compressed_filename.zip foldername

Uninstall Nginx

1. Remove all but config files: sudo apt-get remove nginx nginx-common
2. Remove everything: sudo apt-get purge nginx nginx-common
3. After remove Nginx, use sudo apt-get autoremove in order to remove dependencies used by nginx which are no longer required.

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