CODEWITHSUNDEEP
sedgnu
mehdi
mehdi

Reputation: 355

sed print N lines after match

I have a file containing these lines:

some junk
in here

log number 1
line1, data, here
line2,data,here
line3,data,here
and so on

some other
junk

log number 2
line one, some,data
line two, some,data
line three, blablabla

I want to match and print about hundred lines after n-th match of log number ... lines. this solution works, but I don't want to type a 100 Ns in my sed command.

Also /log.*\n(.*\n){2}/gm (printing 2 lines after match) works on regex101 but not on my terminal (sed doesn't match \n).

I use arch linux and GNU sed version 4.8.

Upvotes: 0

Views: 2590

Answers (1)

sseLtaH
sseLtaH

Reputation: 11227

Does something like this not work?

$ sed -n '/log.*1/,+4p' file
log number 1
line1, data, here
line2,data,here
line3,data,here
and so on

If you just need to print 100 lines after the match, it should be all you need.

$ sed -n '/log.*1/,+100p' file

Upvotes: 1

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