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Using the following example, I need to filter out the line containing 'ABC' only, while skipping the lines matching 'ABC' that contain square brackets:
2012-04-04 04:13:48,760~sample1~ABC[TLE 5332.233 2/13/2032 3320392]:CAST 2012-04-04 04:13:48,761~sample2~ABC 2012-04-04 04:13:48,761~sample3~XYZ[BAC.CAD.ABC.CLONE 232511]:TEST
Here is what I have, but so far I'm unable to successfully filter out the lines with square brackets:
bash-3.00$ cat Metrics.log | grep -e '[^\[\]]' | grep -i 'ABC'
Please help?
968
Another solution is that, if your string is fixed string and it contains brackets. so with the help of grep -F you can make your string fixed and it will be search as it is. cat enb. txt | grep -F '[PHY][I]UE' ** cat enb.
Since the grep process itself has "firefox" in it, grep finds that as well. By adding a [] , we are only searching for the character class "[f]" (which consists of only the letter "f" and is therefor equivalent to just an "f" without the brackets).
If you include special characters in patterns typed on the command line, escape them by enclosing them in single quotation marks to prevent inadvertent misinterpretation by the shell or command interpreter. To match a character that is special to grep –E, put a backslash ( \ ) in front of the character.
Using Grep to Filter the Output of a CommandA command's output can be filtered with grep through piping, and only the lines matching a given pattern will be printed on the terminal. You can also chain multiple pipes in on command. As you can see in the output above there is also a line containing the grep process.
Edited based on comments:
Try grep -i 'ABC' Metrics.log | grep -v "[[]" | grep -v "ABC\w"
Input:
2012-04-04 04:13:48,760~sample1~ABC[TLE 5332.233 2/13/2032 3320392]:CAST
2012-04-04 04:13:48,761~sample2~ABC
2012-04-04 04:13:48,761~sample3~XYZ[BAC.CAD.ABC.CLONE 232511]:TEST
2012-04-04 04:13:48,761~sample4~XYZ
2012-04-04 04:13:48,761~sample5~ABCD
2012-04-04 04:13:48,761~sample6~ABC:TEST
Output:
2012-04-04 04:13:48,761~sample2~ABC
2012-04-04 04:13:48,761~sample6~ABC:TEST
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