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It outputs a given line from a file

Terminal - It outputs a given line from a file
awk 'NR==linenumber' filename
2010-07-06 05:17:29
User: rajarshi
Functions: awk
-4
It outputs a given line from a file

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

sed -n $Np filename

Will print $N'th line from filename

Comment by unixmonkey10174 254 weeks and 3 days ago

You sux, sed solution is faster and shorter:

sed -n ${num}p filename

Comment by drizztbsd 254 weeks and 3 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.

Comment by inof 254 weeks and 2 days ago

@drizzzz...: you are right, the sed version is slightly faster, but how come its shorter? :-P

Comment by rajarshi 254 weeks and 1 day ago

Your point of view

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