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Functions

Efficiently print a line deep in a huge log file

Terminal - Efficiently print a line deep in a huge log file
sed '1000000!d;q' < massive-log-file.log
2009-01-26 11:50:00
User: root
Functions: sed
21
Efficiently print a line deep in a huge log file

Sed stops parsing at the match and so is much more effecient than piping head into tail or similar. Grab a line range using

sed '999995,1000005!d' < my_massive_file

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

I prefer:

sed -n '1000000p' massive-log-file.log
Comment by penthief 373 weeks and 1 day ago

Have you done tests? In my examples (line 10 mio from a 19 mio lines file) head|tail was faster. sed was only slightly faster if you write:

head -n 10000001 | tail -n 2

0.9 sec utime, 2 sec clock time

sed -n '10000000,10000001p'

1.7 sec utime, 2.2 sec clock time

sed -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. :-)

Comment by weidenrinde 31 weeks and 2 days ago

Seo The Golden Palm

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Link UrL

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[URL='http://thanhphongland.com/du-an/gioi-thieu/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] chu dau tu the golden palm [/URL]

[URL='http://thanhphongland.com/du-an/gioi-thieu/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] chủ đầu tư the golden palm [/URL]

[URL='http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] golden palm le van luong [/URL]

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[URL='http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] chung cư l? văn lương [/URL]

[URL='http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] golden palm hdi [/URL]

[URL='http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html'] golden palm ceninvest [/URL]

Từ kh?a SEO: chung cu the golden palm, chung cư the golden palm, du an the golden palm, dự ?n the golden palm, can ho the golden palm, căn hộ the golden palm, mat bang the golden palm, mặt bằng the golden palm, the golden palm, golden palm, bang gia the golden palm, bảng gi? the golden palm, chu dau tu the golden palm, chủ đầu tư the golden palm, golden palm le van luong, golden plam l? văn lương, mua chung cu the golden palm, mua chung cư the golden plam, chung cu le van luong, chung cư l? văn lương, golden palm hdi, golden palm ceninvest

Link a href

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html/"> chung cu the golden palm

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http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> can ho the golden palm

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http://thanhphongland.com/du-an/thiet-ke-mat-bang/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> mat bang the golden palm

http://thanhphongland.com/du-an/thiet-ke-mat-bang/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> mặt bằng the golden palm

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http://thanhphongland.com/du-an/bang-gia/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> bảng gi? the golden palm

http://thanhphongland.com/du-an/gioi-thieu/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> chu dau tu the golden palm

http://thanhphongland.com/du-an/gioi-thieu/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> chủ đầu tư the golden palm

http://thanhphongland.com/du-an/gioi-thieu/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> golden palm le van luong

http://thanhphongland.com/">th?ng tin nh? đất

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> mua chung cu the golden palm

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> golden plam l? văn lương, mua

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> mua chung cư the golden plam

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> chung cu le van luong

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> chung cư l? văn lương

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> golden palm hdi

http://thanhphongland.com/du-an/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html"> golden palm ceninvest

Link Trần dạng đầy đủ v? R?t Gọn Đi Spam, Comment, Facebook, mail??

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http://goo.gl/rSLGYc

chu dau tu golden palm, chủ đầu tư the golden palm, golden palm hdi, golden palm ceninvest

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http://goo.gl/kuuPkL

vi tri golen plam, vị tr? dự ?n golden plam, vị tr? dự an the golden plam, vi tri du an the golden palm

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http://goo.gl/7T1chF

Bảng gi? chung cu the golden palm, bang gia chung cu the golden palm, bang gia golden palm, bảng gi? palm

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http://goo.gl/ASaFba

Thiết kế mặt bằng golden palm, thiet ke mat bang golden palm, mat bang the golden palm, mặt bẳng the golden palm

http://thanhphongland.com/du-an/thiet-ke-mat-bang/chung-cu-the-golden-palm-le-van-luong-chu-dau-tu-hdi.html

http://goo.gl/y4pjhQ

Comment by conkhicon142 1 week and 3 days ago

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