5 Grep Tools for Linux By Ivana Isadora Devcic – Posted on Mar 1, 2015 Mar 1, 2015 in Linux As every Linux user surely knows, grep is a reliable command-line tool for in-depth file searching. To quickly find any text string within any text file, try this from a terminal window: grep -l [text to find] [files to look in] For example, grep -l 123abc *.html will list the name of any file in the current directory that ends in.html and contains the string 123abc.

I have a log file with entries like the following:

Input

Output

What I'm trying to do is match all lines from a log file unless - it contains php followed by error or notice. If it contains php followed by error or notice, then it should only match if winner is also in the string. My regex-foo is weak. Thanks.

2 Answers

Use this: grep 'phps+(error|notice).*winner' mylogfile

There might be a way to get grep to pull that off in one string but I think personally I'd make it script to handle that in either perl or bash.In bash it would be something like

I don't have a system handy to test/debug this right now, so you may have to tweak it a bit.

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