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10-24-2009
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Grep -v, with -A or -B?
hello everyone, i'm taking a class on unix and linux, and have come across a problem that my teacher couldn't figure out either: the testing file i'm using: Code:
This is a test of grep to see how inversion really works and figure out the problem that the class is having hopefully this works so here's some things i've tried: Code:
cat test|grep 'figure' output: and figure out the problem that the class is having cat test|grep -A 1 'figure' output: and figure out the problem that the class is having hopefully this works and here's the problem: cat test|grep -v -A 1 'figure' output: This is a test of grep to see how inversion really works and figure out the problem that the class is having hopefully this works so, why does grep behave like that?, i thought that the output would be: Code:
This is a test of grep to see how inversion really works instead it acts like it broke, and outputs the entire file, any help is much appreciated |
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