Top 20 terminal command of ubuntu
1. Kill a running application by its name
killall [app_name]
2. Display disk space usage:
df �h
3. Locate the installation directories of a program:
whereis [app]
4. Mount an .iso file:
mount /path/to/file.iso /mnt/cdrom �oloop
5. Record or capture a video of your desktop:
ffmpeg -f x11grab -s wxga -r 25 -i :0.0 -sameq /tmp/out.mpg
6. Find out the Universally Unique Identifier (UUID) of your partitions:
ls /dev/disk/by-uuid/ -alh
7. Show the top ten running processes (sorted by memory usage):
ps aux | sort -nrk 4 | head
8. Make an audible alarm when an IP address goes online:
ping -i 60 -a IP_address
9. Run the last command as root:
sudo !!
10. Make a whole directory tree with one command:
mkdir -p tmp/a/b/c
11.. restart : Restart the computer
12. shutdown : To shutdown the computer from terminal
13. gksudo : Run GUI Application with Root privilege
14. wget : Download files from server
GNU Wget or wget is very handy in downloading stuffs from internet, over the command line.
15. mv : rename or move a file/directory
the above command will move the file from the current directory to target directory.
it will rename the file to new_logo.jpg.
16. sudo : superuser do, to gain root privilege
e.g
Then enter your user account password, and you would be able to do administrative tasks like root. So if you�re getting any permission error using a command, then adding sudo as a prefix, might help.
17. rm : remove/delete file/directory
NOTE : it removes directories only if it�s empty, unless you specify -f flag for force deletion. But you must be careful with the arguments such as -r, -f. (-rf is very dangerous).
18. mkdir : make/create directory.
19. pwd : print the current/working directory
20. cd : Change Directory
Remember,
. represents the current directory
.. represents the parent directory
~ represents the home directory (of the user)
killall [app_name]
2. Display disk space usage:
df �h
3. Locate the installation directories of a program:
whereis [app]
4. Mount an .iso file:
mount /path/to/file.iso /mnt/cdrom �oloop
5. Record or capture a video of your desktop:
ffmpeg -f x11grab -s wxga -r 25 -i :0.0 -sameq /tmp/out.mpg
6. Find out the Universally Unique Identifier (UUID) of your partitions:
ls /dev/disk/by-uuid/ -alh
7. Show the top ten running processes (sorted by memory usage):
ps aux | sort -nrk 4 | head
8. Make an audible alarm when an IP address goes online:
ping -i 60 -a IP_address
9. Run the last command as root:
sudo !!
10. Make a whole directory tree with one command:
mkdir -p tmp/a/b/c
11.. restart : Restart the computer
restart
12. shutdown : To shutdown the computer from terminal
shutdown -h
13. gksudo : Run GUI Application with Root privilege
gksudo nautilus
14. wget : Download files from server
GNU Wget or wget is very handy in downloading stuffs from internet, over the command line.
wget url_of_the_content
15. mv : rename or move a file/directory
mv file1 ~/Downloads/Archive/
the above command will move the file from the current directory to target directory.
mv logo_2.jpg new_logo.jpg
it will rename the file to new_logo.jpg.
16. sudo : superuser do, to gain root privilege
e.g
sudo apt-get install gnome-shell
Then enter your user account password, and you would be able to do administrative tasks like root. So if you�re getting any permission error using a command, then adding sudo as a prefix, might help.
17. rm : remove/delete file/directory
rm useless.sh
NOTE : it removes directories only if it�s empty, unless you specify -f flag for force deletion. But you must be careful with the arguments such as -r, -f. (-rf is very dangerous).
18. mkdir : make/create directory.
mkdir funny_stuffs
19. pwd : print the current/working directory
pwd
/home/Desktop/scripts
20. cd : Change Directory
cd ../
cd /home/Desktop
Remember,
. represents the current directory
.. represents the parent directory
~ represents the home directory (of the user)
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