To print a specific line from a file
jeju:[xxx] > sed -n 5p test line 5 jeju:[xxx] > cat test line 1 line 2 line 3 line 4 line 5 line 6 line 7 line 8 line 9 line 10 jeju:[xxx] >
7 Alternatives + Submit Alt
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This command uses awk(1) to print all lines between two known line numbers in a file. Useful for seeing output in a log file, where the line numbers are known. The above command will print all lines between, and including, lines 3 and 6.
9awk 'NR >= 3 && NR <= 6' /path/to/file -
Print all lines between two line numbers This command uses sed(1) to print all lines between two known line numbers in a file. Useful for seeing output in a log file, where the line numbers are known. The above command will print all lines between, and including, lines 3 and 6. Show Sample Output
8sed -n '3,6p' /path/to/file -
Subtly different to the -n+p method... and probably wrong in so many ways....... But it's shorter. Just.
4sed '10,20!d' -
Just one character longer than the sed version ('FNR==5' versus -n 5p). On my system, without using "exit" or "q", the awk version is over four times faster on a ~900K file using the following timing comparison:
testfile="testfile"; for cmd in "awk 'FNR==20'" "sed -n '20p'"; do echo; echo $cmd; eval "$cmd $testfile"; for i in {1..3}; do time for j in {1..100}; do eval "$cmd $testfile" >/dev/null; done; done; doneAdding "exit" or "q" made the difference between awk and sed negligible and produced a four-fold improvement over the awk timing without the "exit". For long files, an exit can speed things up:awk 'FNR==5{print;exit}' <file>2awk 'FNR==5' <file> -
I don't know if it's better but works fine :)
-5awk '{if (NR == 3) print}' <file>
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?
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sed -n '5{p;q}' fileso you do not read the rest of a possibly long file.seo and <a href="https://wintseo.com">???</a><a href="https://wintseo.com"> ??? ????</a>