Commands I use on a regular basis in Linux
cd
cd means “Change Directory”
usage
obvious, change directory
syntax
cd $PATH
example
cd ~/Documents/
Tipif you write “cd” without path, it will take you to home directory
ls
list files and directories
syntax
ls $PATH
example
ls ~/Documents/
or just write it without any path to execute it on current location
ls
Tipls -la is a useful command to list all files and directories including hidden ones.
mv
move file or directory
syntax
mv PATH NEW_PATH
example
mv file.txt ~/Documents/file.txt
mv directory/ ~/Documents/new_directory_location/
Tipor can be also used to rename a file or folder
mv file.txt new_file.txt
rm
remove file or directory
syntax
rm $PATH
example
rm file.txt
rm directory/
sudo rm -rf
even though it’s dangerous, it’s useful, especially when I want to delete a directory recursively and ignore all permissions.
please don’t use it without thinking twice or on root to not destroy your system.
cp
copy file or directory
syntax
cp PATH NEW_PATH
example
cp file.txt ~/Documents/file.txt
cp directory/ ~/Documents/new_directory_location/
pkill
terminates a program with closest name
pkill program_name
history | grep “command_name”
I use it a lot to find commands I’ve used before. specifically when I want a long command but can’t remember all of its components.
ffmpeg
ffmpeg is a powerful tool for video and audio processing.
it is not a packaged command, you need to install it separately.
examples
ffmpeg -i input.mp4 -vf scale=-1<720> output.mp4
conversion from mkv to mp4
ffmpeg -i input.mkv -c copy output.mp4
Some information may be outdated