It outputs a given line from a file

awk 'NR==linenumber' filename

By: rajarshi
2010-07-06 05:17:29

What Others Think

sed -n $Np filename Will print $N'th line from filename
unixmonkey10174 · 551 weeks ago
You sux, sed solution is faster and shorter: sed -n ${num}p filename
drizztbsd · 550 weeks and 6 days ago
Hi drizzt! :) The following solution is even more efficient, because it stops reading the file as soon as the desired line is found: sed -n '${num}p;${num}q' filename or: sed -n '${num}{p\nq\n}' filename (where \n are literal newlines) Without the additional q command, sed would always read through the entire file.
inof · 550 weeks and 5 days ago
@drizzzz...: you are right, the sed version is slightly faster, but how come its shorter? :-P
rajarshi · 550 weeks and 5 days ago

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? 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.


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: