Linux 进程grep给出不明确的输出

我有这个init.d脚本，在这里我检查应用程序的状态，预期的输出应该是 “应用程序正在以PID:XXXX运行”

无论如何，我将向您展示我使用的代码：

ps -ef|grep -v grep |grep Jazz |grep -v "Jazz status"|awk '{ if ( $2 != "") print "Jazz Running with PID:",$2"; else print "Jazz not running";}'

#!/bin/sh

USER="xxxxxxx"
PASSWORD="xxxxxx"
start() {
su - netcool -c "/opt/IBM/tivoli/jazzSM/profile/bin/startServer.sh server1"

RETVAL=$?
return $RETVAL
}
stop() {
su - netcool -c "/opt/IBM/tivoli/jazzSM/profile/bin/stopServer.sh server1 -username ${USER} -password ${PASSWORD}"

RETVAL=$?
return $RETVAL
}
status() {
ps -ef|grep -v grep |grep Jazz |grep -v awk |grep -v "Jazz status" |awk '{ if ( $2!= "") print "Jazz is running with PID:",$2; else print "Jazz is not running";}'
#pid=$(pgrep -f Jazz) && echo "Jazz Running with PID: $pid" || echo "Jazz is not running"
}
case $1 in
"start")
start
;;
"stop")
stop
;;
"status")
status
;;
"restart"|"reload")
stop
start
;;

*)
echo "usage: $0 {start|stop|status|restart|reload}"
RETVAL=1
esac
exit 0

在终端上运行此命令时，我得到以下输出：

    Jazz Running with PID: 6261
    Jazz Running with PID: 30077

#ps -ef|grep -v grep |grep Jazz |grep -v "Jazz status"|awk '{ if ( $2 != "") print $2}'   
300077

当我删除print语句并输出$2时，我得到以下输出：

    Jazz Running with PID: 6261
    Jazz Running with PID: 30077

#ps -ef|grep -v grep |grep Jazz |grep -v "Jazz status"|awk '{ if ( $2 != "") print $2}'   
300077

我希望输出是

Jazz Running with PID: 300773

我不明白为什么在第一种情况下我会得到两个PID？ 第一个PID不断变化，类似于显示命令本身的PID

---

编辑： 输出：

ps-ef | grep Jazz

netcool  12744     1  5 13:03 ?        00:06:06 /opt/IBM/tivoli/webSphere/AppServer/java/bin/java -Declipse.security -Dwas.status.socket=38692 -Dosgi.install.area=/opt/IBM/tivoli/webSphere/AppServer -Dosgi.configuration.area=/opt/IBM/tivoli/jazzSM/profile/servers/server1/configuration -Djava.awt.headless=true -Dosgi.framework.extensions=com.ibm.cds,com.ibm.ws.eclipse.adaptors -Xshareclasses:name=webspherev85_1.6_64_%g,nonFatal -Xbootclasspath/p:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/ibmorb.jar -classpath /opt/IBM/tivoli/jazzSM/profile/properties:/opt/IBM/tivoli/webSphere/AppServer/properties:/opt/IBM/tivoli/webSphere/AppServer/lib/startup.jar:/opt/IBM/tivoli/webSphere/AppServer/lib/bootstrap.jar:/opt/IBM/tivoli/webSphere/AppServer/lib/jsf-nls.jar:/opt/IBM/tivoli/webSphere/AppServer/lib/lmproxy.jar:/opt/IBM/tivoli/webSphere/AppServer/lib/urlprotocols.jar:/opt/IBM/tivoli/webSphere/AppServer/deploytool/itp/batchboot.jar:/opt/IBM/tivoli/webSphere/AppServer/deploytool/itp/batch2.jar:/opt/IBM/tivoli/webSphere/AppServer/java/lib/tools.jar -Dibm.websphere.internalClassAccessMode=allow -Xms512m -Xmx1024m -Xcompressedrefs -Xscmaxaot4M -Xscmx60M -Dws.ext.dirs=/opt/IBM/tivoli/webSphere/AppServer/java/lib:/opt/IBM/tivoli/jazzSM/profile/classes:/opt/IBM/tivoli/webSphere/AppServer/classes:/opt/IBM/tivoli/webSphere/AppServer/lib:/opt/IBM/tivoli/webSphere/AppServer/installedChannels:/opt/IBM/tivoli/webSphere/AppServer/lib/ext:/opt/IBM/tivoli/webSphere/AppServer/web/help:/opt/IBM/tivoli/webSphere/AppServer/deploytool/itp/plugins/com.ibm.etools.ejbdeploy/runtime -Dderby.system.home=/opt/IBM/tivoli/webSphere/AppServer/derby -Dcom.ibm.itp.location=/opt/IBM/tivoli/webSphere/AppServer/bin -Djava.util.logging.configureByServer=true -Duser.install.root=/opt/IBM/tivoli/jazzSM/profile -Djava.ext.dirs=/opt/IBM/tivoli/webSphere/AppServer/tivoli/tam:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/ext -Djavax.management.builder.initial=com.ibm.ws.management.PlatformMBeanServerBuilder -Dpython.cachedir=/opt/IBM/tivoli/jazzSM/profile/temp/cachedir -Dwas.install.root=/opt/IBM/tivoli/webSphere/AppServer -Djava.util.logging.manager=com.ibm.ws.bootstrap.WsLogManager -Dserver.root=/opt/IBM/tivoli/jazzSM/profile -Dcom.ibm.security.jgss.debug=off -Dcom.ibm.security.krb5.Krb5Debug=off -Dfas.install.location=/opt/IBM/tivoli/jazzSM/admin -Dfas.ui.install.location=/opt/IBM/tivoli/jazzSM/admin_ui -Djava.library.path=/opt/IBM/tivoli/webSphere/AppServer/lib/native/linux/x86_64/:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/amd64/default:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/amd64:/opt/IBM/tivoli/webSphere/AppServer/bin:/usr/lib:/opt/IBM/tivoli/jazzSM/reporting/cognos/bin64: -Djava.endorsed.dirs=/opt/IBM/tivoli/webSphere/AppServer/endorsed_apis:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/endorsed:/opt/IBM/tivoli/webSphere/AppServer/endorsed_apis:/opt/IBM/tivoli/webSphere/AppServer/java/jre/lib/endorsed -Djava.security.auth.login.config=/opt/IBM/tivoli/jazzSM/profile/properties/wsjaas.conf -Djava.security.policy=/opt/IBM/tivoli/jazzSM/profile/properties/server.policy com.ibm.wsspi.bootstrap.WSPreLauncher -nosplash -application com.ibm.ws.bootstrap.WSLauncher com.ibm.ws.runtime.WsServer /opt/IBM/tivoli/jazzSM/profile/config JazzSMNode01Cell JazzSMNode01 server1
netcool  19735 19678  0 14:50 pts/0    00:00:00 grep Jazz

---

编辑 我使用的完整init.d脚本：

ps -ef|grep -v grep |grep Jazz |grep -v "Jazz status"|awk '{ if ( $2 != "") print "Jazz Running with PID:",$2"; else print "Jazz not running";}'

#!/bin/sh

USER="xxxxxxx"
PASSWORD="xxxxxx"
start() {
su - netcool -c "/opt/IBM/tivoli/jazzSM/profile/bin/startServer.sh server1"

RETVAL=$?
return $RETVAL
}
stop() {
su - netcool -c "/opt/IBM/tivoli/jazzSM/profile/bin/stopServer.sh server1 -username ${USER} -password ${PASSWORD}"

RETVAL=$?
return $RETVAL
}
status() {
ps -ef|grep -v grep |grep Jazz |grep -v awk |grep -v "Jazz status" |awk '{ if ( $2!= "") print "Jazz is running with PID:",$2; else print "Jazz is not running";}'
#pid=$(pgrep -f Jazz) && echo "Jazz Running with PID: $pid" || echo "Jazz is not running"
}
case $1 in
"start")
start
;;
"stop")
stop
;;
"status")
status
;;
"restart"|"reload")
stop
start
;;

*)
echo "usage: $0 {start|stop|status|restart|reload}"
RETVAL=1
esac
exit 0

希望这有帮助

---

更新 根据@jlliagre的建议，运行以下命令仍然会将多个PID作为输出：

[root@hjkpnlinst04 ~]# pid=$(pgrep -f jazzSM) && echo "Jazz Running with PID: $pid" || echo "Jazz is not running"
Jazz Running with PID: 12744
13176
13299

目前，我正在运行此命令，该命令似乎在进程运行时为我提供所需的输出，但在进程未运行时无法为我提供“else”输出：

ps -ef|grep -v grep |grep Jazz |grep -v awk |grep -v "Jazz status" |awk '{ if ( $2!= "") print "Jazz is running with PID:",$2; else print "Jazz is not running";}'

---

很可能你找到了awk。你排除了grep，但不是awk。 更好的方法是使用pgrep命令，例如：

echo "java is running with pids ", `pgrep java`

将列出运行的所有pids Java进程。它只查看进程映像名称，而不在命令行上。我不确定pgrep的可移植性如何，但它在Linux、FreeBSD和OSX上都有，对我来说已经足够好了

但是看看你更新的答案，我发现你在寻找命令行关键字，所以像@jlliagre建议的那样，你应该使用-f开关。pgrep的优点是它足够聪明，可以排除自身，这与AWK和GREP链不同。

该命令应该可以工作（假设

pgrep

可用）：

---

我建议您使用ps-ef | grep-v‘Jazz status’| grep Jazz | grep-v grept上述命令为我提供了正确的输出，但我希望以一种优雅的方式提供输出，而不是整个过程的细节。谢谢您，包括grep-v awk。但我以前从未面对过这个问题。无论如何，我只是好奇如何使用pgrep实现相同的功能？第一个命令不产生输出，但是第二个命令给我输出，但是又有两个PID

#/etc/init.d/Jazz status Jazz使用PID:12744 16347运行

如果您给出Jazz进程所使用的命令行，将会有所帮助

ps-ef | grep Jazz

（将其添加到原始问题中，而不是此处，因为注释不保留格式）。init.d脚本的名称是什么？请看我的更新答案。Jazz。我以

Jazz状态运行它，这就是问题所在，请尝试我更新的脚本，它使用“jazzSM”而不是“Jazz”，以避免选择init.d脚本。