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remove lines from second matched line (including) the the end of file 2
- Thread starter w5000
- Start date
Hi
From your description I understand this :
[pre]
one [gray]<--- 1[sup]st[/sup] occurrence[/gray]
two
two
[red][black]one[/black][/red] [gray]<--- 2[sup]nd[/sup] occurrence[/gray]
[red][black]one[/black][/red] [gray]|[/gray]
[red][black]there[/black][/red] [gray]|- remove these lines[/gray]
[red][black]one[/black][/red] [gray]<-'[/gray]
[/pre]
But then why the output contains a single "two" ?
Feherke.
[link feherke.github.com/][/url]
From your description I understand this :
[pre]
one [gray]<--- 1[sup]st[/sup] occurrence[/gray]
two
two
[red]
[red]
[red]
[red]
[/pre]
But then why the output contains a single "two" ?
Feherke.
[link feherke.github.com/][/url]
-
1
- #3
- Thread starter
- #4
Hi
Ok. Then here is how I would do it :
Tested with GNU [tt]sed[/tt].
Note that my solution is not extensible. If there are chances to ever change your mind and what to remove starting from the 3[sup]rd[/sup] occurrence, then use PHV's Awk code.
Feherke.
[link feherke.github.com/][/url]
Ok. Then here is how I would do it :
Code:
sed '/one/{x;/^$/!Q;g}' /input/fileNote that my solution is not extensible. If there are chances to ever change your mind and what to remove starting from the 3[sup]rd[/sup] occurrence, then use PHV's Awk code.
Feherke.
[link feherke.github.com/][/url]
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1
- #7
Hi
Thanks you for the note on legacy [tt]sed[/tt] behavior.
But I definitely not understand what you mean in your second paragraph, especially the red line :
Teste with [tt]gawk[/tt] 4.0.1 and [tt]sed[/tt] 4.2.1.
Feherke.
[link feherke.github.com/][/url]
Thanks you for the note on legacy [tt]sed[/tt] behavior.
But I definitely not understand what you mean in your second paragraph, especially the red line :
Code:
[blue]master #[/blue] awk '/one/{++n}n{if(n==1)print;else exit}' w5000.txt
one
two
two
[blue]master #[/blue] sed '/one/{x;/^$/!Q;g}' w5000.txt
one
two
two
[blue]master #[/blue] diff <( awk '/one/{++n}n{if(n==1)print;else exit}' w5000.txt ) <( sed '/one/{x;/^$/!Q;g}' w5000.txt )
[blue]master #[/blue] diff -y <( awk '/one/{++n}n{if(n==1)print;else exit}' w5000.txt ) <( sed '/one/{x;/^$/!Q;g}' w5000.txt )
one one
two two
two twoFeherke.
[link feherke.github.com/][/url]
This is the output given with GNU sed version 4.1.5
The red colour was to outline the garbage output.
Furthermore, I get the same result with the cygwin sed 4.2.1.
BTW, this is the 1st line of my test input file !
I did that to ensure to start at 1rst occurence of /one/ and stop at the 2nd
The red colour was to outline the garbage output.
Furthermore, I get the same result with the cygwin sed 4.2.1.
BTW, this is the 1st line of my test input file !
I did that to ensure to start at 1rst occurence of /one/ and stop at the 2nd
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