ps -ef | grep "服务名" | grep -v "grep" | awk '{print $2}'
# ps -ef|grep "被查询的服务名" 查询服务进程号命令
# grep -v grep 在文档中过滤掉包含有grep字符的行
# awk '{print $2}' 一行一行的读取指定的文件， 以空格作为分隔符，打印第二个字段。
示例如下：
[upay@jy-cash03 app]$ ps -ef | grep tomcat|grep /app/upay/apps/xcharge-simulator_01/bin | grep -v grep
upay 16675 1 0 14:07 pts/1 00:00:46 /opt/app/xcharge/jdk/jdk1.7.0_67/bin/java -Djava.util.logging.config.file=/app/upay/apps/xcharge-simulator_01/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.endorsed.dirs=/app/upay/apps/xcharge-simulator_01/endorsed -classpath /app/upay/apps/xcharge-simulator_01/bin/bootstrap.jar:/app/upay/apps/xcharge-simulator_01/bin/tomcat-juli.jar -Dcatalina.base=/app/upay/apps/xcharge-simulator_01 -Dcatalina.home=/app/upay/apps/xcharge-simulator_01 -Djava.io.tmpdir=/app/upay/apps/xcharge-simulator_01/temp org.apache.catalina.startup.Bootstrap start
[upay@jy-cash03 app]$
[upay@jy-cash03 app]$
[upay@jy-cash03 app]$ ps -ef | grep tomcat|grep /app/upay/apps/xcharge-simulator_01/bin | grep -v grep|awk '{print $2}'
16675