Unix Commands/Scripts for '#Grep'

Unix Commands/Scripts for '#Grep' - 12 Commands/Scripts found

Sample 1. Finding any of the multiple texts strings in file

egrep 'Error|Exception|Debug' logfile.txt

_{Like Feedback egrep grep log grep}

Sample 2. Tail log to see only lines containing an error / exception in last 5000 lines

tail -5000 /opt/WebSphere6/AppServer/profiles/Viva/logs/VivaWebClusterMemberPsc9800/SystemOut.log | grep -i "FileNotFoundException"

_{Like Feedback tail tail logs check logs for errors grep grep -i grep ignore case}

Sample 3. Get lines containing any of the multiple errors / exceptions in running logs

tail -f /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | egrep "(WSWS3713E|WSWS3734W|WSVR0605W|javax.net.ssl.SSLHandshakeException|ThreadMonitor)"

_{Like Feedback grep grep logs tail tail -f egrep}

Sample 4. Count a particular word ( error ) in a file

grep -c "Error" logfile.txt

_{Like Feedback grep grep log grep -c}

Sample 5. count number of error / exception occurences in a file.

sed -n '/ERROR/,/EST/p' /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | grep "LogicBlockSetupException" | wc -l

_{Like Feedback sed grep word count wc wc -l}

Sample 6. Finding relevant word and excluding irrelevant word

grep xception logfile.txt | grep -v ERROR

_{Like Feedback grep grep log grep -v}

Sample 7. Finding text within .gz (zipped) file without unzipping them

zgrep -i Error *.gz

_{Like Feedback grep zgrep zgrep -i grep within zipped file}

Sample 8. find occurences of a particular error in last n days

find /opt/WebSphere/AppServer/profiles/application/logs/ -iname "SystemOut*" -mtime -7 -exec zgrep "FileNotFoundException" {} ; >> logAnalysis.txt

_{Like Feedback find zgrep -iname 0mtime >>}

Sample 9. Get all Errors in a log file for last n days in a seperate error file

find /LogFilesfolder/ -iname "SystemOut*" -mtime -7 -exec zgrep "| ERROR |" {} ; >> logReport.txt

_{Like Feedback find -iname -mtime zgrep find errors in log file}

Sample 10. Display the file names that matches the given pattern

grep -l ERROR *.log

_{Like Feedback grep}

Sample 11. Get Error Snippets in running logs

tail -f /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | sed -n '/ERROR/,/EST/p'

_{Like Feedback grep grep logs tail tail -f sed sed -n}

Sample 12. Count words in a File

grep "Text" file.txt | wc -l

_{Like Feedback count words in a file grep wc word count}

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