Embed next line on the end of current line using sed

sed 'X{N;s/\n//;}' file.txt (where X is the current line)
N: On the current line, sed will display it on pattern space, plus a \n (new line); but s/\n//: Will get rid of new line displayed on pattern space, joining the current line's end with the start of the next line Useful in scripts.
Sample Output
[11:12:57][[email protected]]
[~]$ cat .config/autostart/sound.desktop~
[Desktop Entry]
Exec=mplayer /home/pibarnas/Sounds/162464__kastenfrosch__message.mp3

[11:15:10][[email protected]]
[~]$ sed  '1{N;s/\n//;}' .config/autostart/sound.desktop~
[Desktop Entry]Name=Sound
Exec=mplayer /home/pibarnas/Sounds/162464__kastenfrosch__message.mp3

[11:15:13][[email protected]]
[~]$ sed  '2{N;s/\n//;}' .config/autostart/sound.desktop~
[Desktop Entry]
Exec=mplayer /home/pibarnas/Sounds/162464__kastenfrosch__message.mp3

[11:12:17][[email protected]]
[~]$ sed  '3{N;s/\n//;}' .config/autostart/sound.desktop~
[Desktop Entry]
Exec=mplayer /home/pibarnas/Sounds/162464__kastenfrosch__message.mp3

By: pibarnas
2016-07-30 14:27:20

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: