I have a file with these lines:
aa bb cc dd I want to convert this into:
aa aa bb bb cc cc dd dd Is this possible in VI?
- 1Probably of interest for many people getting here : stackoverflow.com/q/29368158/812102Skippy le Grand Gourou– Skippy le Grand Gourou2016-04-10 14:47:35 +00:00Commented Apr 10, 2016 at 14:47
- @MikaAndrianarijaona and what do you propose to use when it turns out that Atom can't do something we want? Switch to VSCode?Stefan van den Akker– Stefan van den Akker2024-05-02 08:44:19 +00:00Commented May 2, 2024 at 8:44
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3 Answers
Try this simple one:
:g/^/norm yyp Yet another one(shorter):
:%s/.*/&\r& Another one:
:%!sed p 
1 Comment
mmarchin
Thanks for the s option, because I was looking to do this for a visual selection and that worked for me.
I like g/^/t.
The g (for global) command will look for any lines that match a pattern.
The pattern we specified is ^, which will match all lines. t will copy and paste, and finally
the dot tells it to paste below.
Do I win for brevity?
2 Comments
Mohammad Kanan
I like the
g/^/norm yyp as it could very simply duplicate or triplicate .. or even more by just adding p as needed ... g/^/norm yypp :) 10x
Bahram Ardalan
i liked the accepted answer, more, but upvoted this one, instead, because of the (even small but thoughtful) effort to explain. Thank you.
Use the global command g to operate on every line in the file:
:g/^/norm yyp The g command will operate on all lines that match a pattern. ^ is a pattern which will match any line. norm executes the command yyp, which yanks the current line, and pastes it. :g/^/norm Yp will also work.
See :help global for more details about the command, and see also this vim wiki page on g.
1 Comment
Ingo Karkat
@Conner: That doesn't work, as % iterates over the original range, but the command adds lines. You need the "mark first, then iterate" logic of
:global here.