alsamixer: 音量调节 Show dd progress 1 2 # dd if=/dev/zero of=/tmp/foo & # while pgrep ^dd; do kill -USR1 `pgrep ^dd`; sleep 10; done Ref: http://adam8157.info/blog/2011/05/show-dd-progress http://www.commandlinefu.com/commands/view/4011/check-the-status-of-dd-in-progress burn DVD You can use brasero to burn CD/DVD copy message to clipboard cat doc.txt | xsel # use middle mouse key or Control + Shift + Insert to paste cat doc.txt | xsel -b # use Control + v