Efficiently print a line deep in a huge log file
sed '999995,1000005!d' < my_massive_file
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Get two different lines like this:
sed -n '1000000p;2000000{p;q;}' < massive-log-file.logSee also: http://www.commandlinefu.com/commands/view/6043/print-just-line-4-from-a-textfile0sed -n '1000000{p;q;}' < massive-log-file.log
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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 '1000000p' massive-log-file.loghead -n 10000001 | tail -n 20.9 sec utime, 2 sec clock timesed -n '10000000,10000001p'1.7 sec utime, 2.2 sec clock timesed -n '10000000,10000001p;10000002q'0.9 sec utime, 1.2 sec clock time Otherwise sed will parse until the end, what head|tail doesn't. Overall the time differences seem irrelevant. It's more a question of beauty. :-)