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10-10-2008
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awk or sed for finding closest pattern to a line number
hi guys,
I want to do pattern matching with awk or sed but I don't know how. here's what I want: I have a line number for a pattern that I have already found using grep, and I know a pattern like "---" that happens a few lines above that certain line number. I want to print out the chunk between "---" and that line number. But here's the catch. the pattern "---" can be between 1 and 20 lines above that line number and I don't know how many lines above ... Also, another catch is that, "---" can happen multiple times in the file but I want the "CLOSEST" to the line number. Here's an example: Here's the file: Quote:
Can someone help me out here please? Thanks |
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10-11-2008
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Should be something like:
Code:
awk '
/---/{c=0}
{a[++c]=$0}
/qqq/{for(i=1;i<=c;i++){print a[i]}exit}
' file
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