Searching for lines in a file?

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Grep -B used with -f? (Searching a file using a list of terms, output is lines before each match)

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Hi fellas, I have a file like this: A_B B_D C_D D_B E_F G_H B_A F_E In other words, I have member1_member2 and member2_member1 in the same file. In the exemple aforementioned I have A_B and B_A, B_D and D_B, E_F and F_E. So, I would like to know a sript that print the lines B_A, D_B...

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Searching for lines in textfiles

Hello all, I've a problem. I've two logfiles and i need to find lines in the second file by using information from the first file. First I need to extract a searchpattern from the first file. Its like abc=searchpattern&cde=. All between abc= and &cde= is the pattern I need to find in the second...

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Dear All, Please advice me, I have a text file with one field date and time like below given. I need to find out the lines whchi content the time stamp between Wed May 26 11:03:11 2010 and Wed May 26 11:03:52 2010 both can be included, using awk command which could be an interactive so that I...

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Hi Gurus, I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite...

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lines searching >>

hi guys! I`ll really appreciate your help. The situation is: i have a log file, and i need to get the needed lines from it. linecount=$(cat -n http.log | grep ALERT | awk '{print $1}' | wc -l) lines=$(cat -n http.log | grep ALERT | awk '{print $1}') 1-string gets the number of found lines...

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sed searching across lines

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UNIX for Dummies Questions & Answers