Example Analysis of SHELL script Monitoring JAVA process

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Content of the script: java_check.sh

#! / bin/bash # if [- z `pidof java`]; then echo-e `java` +% Ymuri% mmury% d``date +% R`. "33 [31m33 [1m (JAVA) Process does not exist! 33 [0m" > > / data/logs/java_check.log / usr/local/tomcat/bin/startup.sh > / dev/null 2 > & 1 sleep 30 netstat-tnlp > > / data/logs/java_check.log echo-e "r" > > / data/logs/java_check.log fi

Plan the mission and execute it every 15 minutes.

The code is as follows:

* / 15 * root / usr/local/bin/java_check.sh

A shell that monitors the running of java programs

#! / bin/shexport Jacks Lib grep grep data java XinTai export CLASSPATH=.:$J_LIB/jtds-1.2.jar:$J_LIB/log4j-1.2.12.jar:$J_LIB/postgresql-8.1-404.jdbc3.jarterexport java XinTai / bin/ps ax | / bin/grep-v java XinTai | / bin/grep "java XinTai"; export Else cd / data/sms/xintai; / usr/java/jdk1.5.0_05/bin/java XinTai > / dev/null & fi

Regular execution ensures that java XinTai can run all the time.

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