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Continue to ChatUbuntu Linux: Increase decrease volume from command line & keyboard shortcut https://blog.chapagain.com.np/ubuntu-linux-increase-decrease-volume-from-command-line-keyboard-shortcut/
Ubuntu Linux: Increase decrease volume from command line & keyboard shortcut https://blog.chapagain.com.np/ubuntu-linux-increase-decrease-volume-from-command-line-keyboard-shortcut/