grep 同時知足多個關鍵字和知足任意關鍵字
① grep -E "word1|word2|word3" file.txt
知足任意條件(word一、word2和word3之一)將匹配。
② grep word1 file.txt | grep word2 |grep word3
必須同時知足三個條件(word一、word2和word3)才匹配。
多條件查詢
grep '6313296' /app/tradematch3.1/tomcat-tsm_interface/logs/catalina.out |grep '【TMFront】TransferReply ' >> /home/pso/test22.txt
單條件查詢
cat /home/pso/temp/catalina.2015-12-19.out | grep '6208968' >> /home/pso/test19.txt
cat catalina.2015-12-26.out |grep '951454'
日誌裏截取matchid
cat catalina.out |grep "InvestReply" |grep "matchId" |awk -F"[:,]" '{ print $7}' |sed -e '/"/s/"//g' $7
cat catalina.out |grep "TransferReply" |grep "matchId" |awk -F"[:,]" '{ print $7}' |sed -e '/"/s/"//g' $7
但條件過濾
tail -f /app/tomcat7/logs/catalina.out |grep 'INFO TaskMailServiceImpl'
多條件過濾(知足任一條件便可)
tail -f /app/tomcat7/logs/catalina.out |grep -E 'TaskMailServiceImpl|VoteMailServiceImpl'
前50行
grep -A 50 "認購申請:【test292053375918】" /app/tomcat7/logs/catalina.out
後100行
grep -B 100 "認購申請:【test292053375918】" /app/tomcat7/logs/catalina.out
同時顯示前50行,後100行
grep -A 50 -B 100 "認購申請:【test292053375918】" /app/tomcat7/logs/catalina.out
要統計一個字符串出現的次數,這裏現提供本身經常使用兩種方法:vim
1. 使用vim統計tomcat
用vim打開目標文件,在命令模式下,輸入app
便可spa
2. 使用grep:日誌
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grep -o objStr filename|wc -l
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若是是多個字符串出現次數,可以使用:code
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grep -o ‘objStr1\|objStr2' filename|wc -l #直接用\| 連接起來便可
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