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写一个shell 快速启动停止你的微服务吧
阅读量:4322 次
发布时间:2019-06-06

本文共 23442 字,大约阅读时间需要 78 分钟。

  在这个微服务盛行的时代,docker获得了巨大的成功,因为我们需要在一台服务器装上N个服务。

  本文不是想讨论如何使用docker,而是,在一台服务器安装了多个服务后,怎样启动方便的启动服务呢?

一、在tomcat的时代中,直接使用tomcat的启动停止命令,轻松搞定,(tomcat的启动脚本很有水平,感兴趣的点开'+'号查看源码学习下吧)

#!/bin/sh # chkconfig: 2345 10 90# description:tomcat serviceJAVA_OPTS="$JAVA_OPTS -server -XX:PermSize=128M -XX:MaxPermSize=512m"CATALINA_PID=/opt/tomcat7/pid.logCATALINA_HOME=/opt/tomcat7# OS specific support.  $var _must_ be set to either true or false.cygwin=falsedarwin=falseos400=falsecase "`uname`" inCYGWIN*) cygwin=true;;Darwin*) darwin=true;;OS400*) os400=true;;esac# resolve links - $0 may be a softlinkPRG="$0"while [ -h "$PRG" ]; do  ls=`ls -ld "$PRG"`  link=`expr "$ls" : '.*-> \(.*\)$'`  if expr "$link" : '/.*' > /dev/null; then    PRG="$link"  else    PRG=`dirname "$PRG"`/"$link"  fidone# Get standard environment variablesPRGDIR=`dirname "$PRG"`# Only set CATALINA_HOME if not already set[ -z "$CATALINA_HOME" ] && CATALINA_HOME=`cd "$PRGDIR/.." >/dev/null; pwd`# Copy CATALINA_BASE from CATALINA_HOME if not already set[ -z "$CATALINA_BASE" ] && CATALINA_BASE="$CATALINA_HOME"# Ensure that any user defined CLASSPATH variables are not used on startup,# but allow them to be specified in setenv.sh, in rare case when it is needed.CLASSPATH=if [ -r "$CATALINA_BASE/bin/setenv.sh" ]; then  . "$CATALINA_BASE/bin/setenv.sh"elif [ -r "$CATALINA_HOME/bin/setenv.sh" ]; then  . "$CATALINA_HOME/bin/setenv.sh"fi# For Cygwin, ensure paths are in UNIX format before anything is touchedif $cygwin; then  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`  [ -n "$JRE_HOME" ] && JRE_HOME=`cygpath --unix "$JRE_HOME"`  [ -n "$CATALINA_HOME" ] && CATALINA_HOME=`cygpath --unix "$CATALINA_HOME"`  [ -n "$CATALINA_BASE" ] && CATALINA_BASE=`cygpath --unix "$CATALINA_BASE"`  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`fi# For OS400if $os400; then  # Set job priority to standard for interactive (interactive - 6) by using  # the interactive priority - 6, the helper threads that respond to requests  # will be running at the same priority as interactive jobs.  COMMAND='chgjob job('$JOBNAME') runpty(6)'  system $COMMAND  # Enable multi threading  export QIBM_MULTI_THREADED=Yfi# Get standard Java environment variablesif $os400; then  # -r will Only work on the os400 if the files are:  # 1. owned by the user  # 2. owned by the PRIMARY group of the user  # this will not work if the user belongs in secondary groups  . "$CATALINA_HOME"/bin/setclasspath.shelse  if [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; then    . "$CATALINA_HOME"/bin/setclasspath.sh  else    echo "Cannot find $CATALINA_HOME/bin/setclasspath.sh"    echo "This file is needed to run this program"    exit 1  fifi# Add on extra jar files to CLASSPATHif [ ! -z "$CLASSPATH" ] ; then  CLASSPATH="$CLASSPATH":fiCLASSPATH="$CLASSPATH""$CATALINA_HOME"/bin/bootstrap.jarif [ -z "$CATALINA_OUT" ] ; then  CATALINA_OUT="$CATALINA_BASE"/logs/catalina.outfiif [ -z "$CATALINA_TMPDIR" ] ; then  # Define the java.io.tmpdir to use for Catalina  CATALINA_TMPDIR="$CATALINA_BASE"/tempfi# Add tomcat-juli.jar to classpath# tomcat-juli.jar can be over-ridden per instanceif [ -r "$CATALINA_BASE/bin/tomcat-juli.jar" ] ; then  CLASSPATH=$CLASSPATH:$CATALINA_BASE/bin/tomcat-juli.jarelse  CLASSPATH=$CLASSPATH:$CATALINA_HOME/bin/tomcat-juli.jarfi# Bugzilla 37848: When no TTY is available, don't output to consolehave_tty=0if [ "`tty`" != "not a tty" ]; then    have_tty=1fi# For Cygwin, switch paths to Windows format before running javaif $cygwin; then  JAVA_HOME=`cygpath --absolute --windows "$JAVA_HOME"`  JRE_HOME=`cygpath --absolute --windows "$JRE_HOME"`  CATALINA_HOME=`cygpath --absolute --windows "$CATALINA_HOME"`  CATALINA_BASE=`cygpath --absolute --windows "$CATALINA_BASE"`  CATALINA_TMPDIR=`cygpath --absolute --windows "$CATALINA_TMPDIR"`  CLASSPATH=`cygpath --path --windows "$CLASSPATH"`  JAVA_ENDORSED_DIRS=`cygpath --path --windows "$JAVA_ENDORSED_DIRS"`fi# Set juli LogManager config file if it is present and an override has not been issuedif [ -z "$LOGGING_CONFIG" ]; then  if [ -r "$CATALINA_BASE"/conf/logging.properties ]; then    LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/logging.properties"  else    # Bugzilla 45585    LOGGING_CONFIG="-Dnop"  fifiif [ -z "$LOGGING_MANAGER" ]; then  LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"fi# Uncomment the following line to make the umask available when using the# org.apache.catalina.security.SecurityListener#JAVA_OPTS="$JAVA_OPTS -Dorg.apache.catalina.security.SecurityListener.UMASK=`umask`"# ----- Execute The Requested Command -----------------------------------------# Bugzilla 37848: only output this if we have a TTYif [ $have_tty -eq 1 ]; then  echo "Using CATALINA_BASE:   $CATALINA_BASE"  echo "Using CATALINA_HOME:   $CATALINA_HOME"  echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"  if [ "$1" = "debug" ] ; then    echo "Using JAVA_HOME:       $JAVA_HOME"  else    echo "Using JRE_HOME:        $JRE_HOME"  fi  echo "Using CLASSPATH:       $CLASSPATH"  if [ ! -z "$CATALINA_PID" ]; then    echo "Using CATALINA_PID:    $CATALINA_PID"  fifiif [ "$1" = "jpda" ] ; then  if [ -z "$JPDA_TRANSPORT" ]; then    JPDA_TRANSPORT="dt_socket"  fi  if [ -z "$JPDA_ADDRESS" ]; then    JPDA_ADDRESS="8000"  fi  if [ -z "$JPDA_SUSPEND" ]; then    JPDA_SUSPEND="n"  fi  if [ -z "$JPDA_OPTS" ]; then    JPDA_OPTS="-agentlib:jdwp=transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=$JPDA_SUSPEND"  fi  CATALINA_OPTS="$CATALINA_OPTS $JPDA_OPTS"  shiftfiif [ "$1" = "debug" ] ; then  if $os400; then    echo "Debug command not available on OS400"    exit 1  else    shift    if [ "$1" = "-security" ] ; then      if [ $have_tty -eq 1 ]; then        echo "Using Security Manager"      fi      shift      exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \        -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \        -sourcepath "$CATALINA_HOME"/../../java \        -Djava.security.manager \        -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \        -Dcatalina.base="$CATALINA_BASE" \        -Dcatalina.home="$CATALINA_HOME" \        -Djava.io.tmpdir="$CATALINA_TMPDIR" \        org.apache.catalina.startup.Bootstrap "$@" start    else      exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \        -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \        -sourcepath "$CATALINA_HOME"/../../java \        -Dcatalina.base="$CATALINA_BASE" \        -Dcatalina.home="$CATALINA_HOME" \        -Djava.io.tmpdir="$CATALINA_TMPDIR" \        org.apache.catalina.startup.Bootstrap "$@" start    fi  fielif [ "$1" = "run" ]; then  shift  if [ "$1" = "-security" ] ; then    if [ $have_tty -eq 1 ]; then      echo "Using Security Manager"    fi    shift    eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \      -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \      -Djava.security.manager \      -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \      -Dcatalina.base="\"$CATALINA_BASE\"" \      -Dcatalina.home="\"$CATALINA_HOME\"" \      -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \      org.apache.catalina.startup.Bootstrap "$@" start  else    eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \      -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \      -Dcatalina.base="\"$CATALINA_BASE\"" \      -Dcatalina.home="\"$CATALINA_HOME\"" \      -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \      org.apache.catalina.startup.Bootstrap "$@" start  fielif [ "$1" = "start" ] ; then  if [ ! -z "$CATALINA_PID" ]; then    if [ -f "$CATALINA_PID" ]; then      if [ -s "$CATALINA_PID" ]; then        echo "Existing PID file found during start."        if [ -r "$CATALINA_PID" ]; then          PID=`cat "$CATALINA_PID"`          ps -p $PID >/dev/null 2>&1          if [ $? -eq 0 ] ; then            echo "Tomcat appears to still be running with PID $PID. Start aborted."            exit 1          else            echo "Removing/clearing stale PID file."            rm -f "$CATALINA_PID" >/dev/null 2>&1            if [ $? != 0 ]; then              if [ -w "$CATALINA_PID" ]; then                cat /dev/null > "$CATALINA_PID"              else                echo "Unable to remove or clear stale PID file. Start aborted."                exit 1              fi            fi          fi        else          echo "Unable to read PID file. Start aborted."          exit 1        fi      else        rm -f "$CATALINA_PID" >/dev/null 2>&1        if [ $? != 0 ]; then          if [ ! -w "$CATALINA_PID" ]; then            echo "Unable to remove or write to empty PID file. Start aborted."            exit 1          fi        fi      fi    fi  fi  shift  # touch "$CATALINA_OUT"  if [ "$1" = "-security" ] ; then    if [ $have_tty -eq 1 ]; then      echo "Using Security Manager"    fi    shift    eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \      -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \      -Djava.security.manager \      -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \      -Dcatalina.base="\"$CATALINA_BASE\"" \      -Dcatalina.home="\"$CATALINA_HOME\"" \      -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \      org.apache.catalina.startup.Bootstrap "$@" start \      >> "$CATALINA_OUT" 2>&1 "&"  else    eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \      -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \      -Dcatalina.base="\"$CATALINA_BASE\"" \      -Dcatalina.home="\"$CATALINA_HOME\"" \      -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \        -XX:+PrintGCDetails \        -XX:+PrintGCDateStamps \        -XX:+PrintGCTimeStamps \        -Xloggc:"$CATALINA_BASE"/logs/gc.log \      org.apache.catalina.startup.Bootstrap "$@" start "2>&1" | /usr/local/sbin/cronolog -S  "$CATALINA_BASE"/logs/catalina_ln.out "$CATALINA_BASE"/logs/catalina.%Y-%m-%d-%H.out >> /dev/null &  fi  if [ ! -z "$CATALINA_PID" ]; then    echo $! > "$CATALINA_PID"  fi  echo "Tomcat started."elif [ "$1" = "stop" ] ; then  shift  SLEEP=5  if [ ! -z "$1" ]; then    echo $1 | grep "[^0-9]" >/dev/null 2>&1    if [ $? -gt 0 ]; then      SLEEP=$1      shift    fi  fi  FORCE=1  if [ "$1" = "-force" ]; then    shift    FORCE=1  fi  if [ ! -z "$CATALINA_PID" ]; then    if [ -f "$CATALINA_PID" ]; then      if [ -s "$CATALINA_PID" ]; then        kill -0 `cat "$CATALINA_PID"` >/dev/null 2>&1        if [ $? -gt 0 ]; then          echo "PID file found but no matching process was found. Stop aborted."          exit 1        fi      else        echo "PID file is empty and has been ignored."      fi    else      echo "\$CATALINA_PID was set but the specified file does not exist. Is Tomcat running? Stop aborted."      exit 1    fi  fi  eval "\"$_RUNJAVA\"" $LOGGING_MANAGER $JAVA_OPTS \    -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \    -Dcatalina.base="\"$CATALINA_BASE\"" \    -Dcatalina.home="\"$CATALINA_HOME\"" \    -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \    org.apache.catalina.startup.Bootstrap "$@" stop  # stop failed. Shutdown port disabled? Try a normal kill.  if [ $? != 0 ]; then    if [ ! -z "$CATALINA_PID" ]; then      echo "The stop command failed. Attempting to signal the process to stop through OS signal."      kill -15 `cat "$CATALINA_PID"` >/dev/null 2>&1    fi  fi  if [ ! -z "$CATALINA_PID" ]; then    if [ -f "$CATALINA_PID" ]; then      while [ $SLEEP -ge 0 ]; do        kill -9 `cat "$CATALINA_PID"` >/dev/null 2>&1        if [ $? -gt 0 ]; then          rm -f "$CATALINA_PID" >/dev/null 2>&1          if [ $? != 0 ]; then            if [ -w "$CATALINA_PID" ]; then              cat /dev/null > "$CATALINA_PID"              # If Tomcat has stopped don't try and force a stop with an empty PID file              FORCE=0            else              echo "The PID file could not be removed or cleared."            fi          fi      ps -ef | grep tomcat | grep -v grep |  awk '{print $2}' | sed -e "s/^/kill -9 /g"|sh -          echo "Tomcat stopped."          break        fi        if [ $SLEEP -gt 0 ]; then          sleep 1        fi        if [ $SLEEP -eq 0 ]; then          if [ $FORCE -eq 0 ]; then            echo "Tomcat did not stop in time. PID file was not removed. To aid diagnostics a thread dump has been written to standard out."            kill -3 `cat "$CATALINA_PID"`          fi        fi        SLEEP=`expr $SLEEP - 1 `      done    fi  fi  KILL_SLEEP_INTERVAL=5  if [ $FORCE -eq 1 ]; then    if [ -z "$CATALINA_PID" ]; then      echo "Kill failed: \$CATALINA_PID not set"    else      if [ -f "$CATALINA_PID" ]; then        PID=`cat "$CATALINA_PID"`        echo "Killing Tomcat with the PID: $PID"        kill -9 $PID        while [ $KILL_SLEEP_INTERVAL -ge 0 ]; do            kill -0 `cat "$CATALINA_PID"` >/dev/null 2>&1            if [ $? -gt 0 ]; then                rm -f "$CATALINA_PID" >/dev/null 2>&1                if [ $? != 0 ]; then                    if [ -w "$CATALINA_PID" ]; then                        cat /dev/null > "$CATALINA_PID"                    else                        echo "The PID file could not be removed."                    fi                fi                # Set this to zero else a warning will be issued about the process still running                KILL_SLEEP_INTERVAL=0                echo "The Tomcat process has been killed."                break            fi            if [ $KILL_SLEEP_INTERVAL -gt 0 ]; then                sleep 1            fi            KILL_SLEEP_INTERVAL=`expr $KILL_SLEEP_INTERVAL - 1 `        done        if [ $KILL_SLEEP_INTERVAL -gt 0 ]; then            echo "Tomcat has not been killed completely yet. The process might be waiting on some system call or might be UNINTERRUPTIBLE."        fi      fi    fi  fielif [ "$1" = "configtest" ] ; then    eval "\"$_RUNJAVA\"" $LOGGING_MANAGER $JAVA_OPTS \      -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \      -Dcatalina.base="\"$CATALINA_BASE\"" \      -Dcatalina.home="\"$CATALINA_HOME\"" \      -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \      org.apache.catalina.startup.Bootstrap configtest    result=$?    if [ $result -ne 0 ]; then        echo "Configuration error detected!"    fi    exit $resultelif [ "$1" = "version" ] ; then    "$_RUNJAVA"   \      -classpath "$CATALINA_HOME/lib/catalina.jar" \      org.apache.catalina.util.ServerInfoelse  echo "Usage: catalina.sh ( commands ... )"  echo "commands:"  if $os400; then    echo "  debug             Start Catalina in a debugger (not available on OS400)"    echo "  debug -security   Debug Catalina with a security manager (not available on OS400)"  else    echo "  debug             Start Catalina in a debugger"    echo "  debug -security   Debug Catalina with a security manager"  fi  echo "  jpda start        Start Catalina under JPDA debugger"  echo "  run               Start Catalina in the current window"  echo "  run -security     Start in the current window with security manager"  echo "  start             Start Catalina in a separate window"  echo "  start -security   Start in a separate window with security manager"  echo "  stop              Stop Catalina, waiting up to 5 seconds for the process to end"  echo "  stop n            Stop Catalina, waiting up to n seconds for the process to end"  echo "  stop -force       Stop Catalina, wait up to 5 seconds and then use kill -KILL if still running"  echo "  stop n -force     Stop Catalina, wait up to n seconds and then use kill -KILL if still running"  echo "  configtest        Run a basic syntax check on server.xml - check exit code for result"  echo "  version           What version of tomcat are you running?"  echo "Note: Waiting for the process to end and use of the -force option require that \$CATALINA_PID is defined"  exit 1fi
View Code
service tomcat start        # 启动service tomcat stop        # 停止ps -ef | grep tomcat        # 查看tomcat的运行情况

二、在jar包盛行的时代,需要为各个jar包写一个启动脚本,如下:

#!/bin/bash #chkconfig: 2345 10 90PATH_PWD=$(cd `dirname $0`;echo `pwd`)PATH_LOCATION=/etc/init.dJAR_NAME=$(basename $0)PATH_WEBAPPS=/www/xx/webappsPATH_TO_JAR=${PATH_WEBAPPS}/${JAR_NAME}/${JAR_NAME}.jarPATH_LOG=/opt/logs/${JAR_NAME}COMMAND_CRONOLOG=`find /usr -type f -name "cronolog" | sed -n "1p" | tr -d " "`COMMAND_SS=`find /usr -type f -name "ss" | sed -n "1p" | tr -d " "`PID_PATH_NAME=/var/run/${JAR_NAME}.pidSTART_COMMAND=""PORT_DEFAULT=""JMX_PORT=12345if [ x"$PATH_PWD" == x"$PATH_LOCATION" ];then    :else    echo "script ${JAR_NAME} must be in path ${PATH_LOCATION}!"    exit 1;fiif [ -f ${PATH_TO_JAR} ];then    :else    echo "${JAR_NAME}.jar doesn't exist in /www/xx/webapps/${JAR_NAME}/";    exit 1;fi{    while :    do        if ${COMMAND_SS} -tln |grep -q ":$JMX_PORT"        then            ((JMX_PORT++))        else            echo "jmx port is $JMX_PORT"            break        fi    done}service_check(){   if [ -L ${PATH_LOG}/${JAR_NAME}_ln.out ];then      rm -f ${PATH_LOG}/${JAR_NAME}_ln.out && \      echo "${PATH_LOG}/${JAR_NAME}_ln.out has been deleted."       return 0;   fi}service_status(){    ps -ef | grep $PATH_TO_JAR | grep -v grep  >/dev/null 2>&1    if [ $? -ne 0 ];then        echo "$JAR_NAME is not running."        rm -rf $PID_PATH_NAME        return 1;    else        echo "$JAR_NAME is running."        ps -ef | grep $PATH_TO_JAR | grep -v grep | awk '{print $2}' > $PID_PATH_NAME >/dev/null 2>&1        return 0;    fi}service_stop_force(){    ps -ef | grep $PATH_TO_JAR | grep -v grep  >/dev/null 2>&1    if [ $? -ne 0 ];then        rm -rf $PID_PATH_NAME        return 0;    else        echo "$JAR_NAME will be killed by force!"        ps -ef | grep $PATH_TO_JAR | grep -v grep | awk '{print $2}' | xargs kill -9  >/dev/null 2>&1        rm -rf $PID_PATH_NAME        return 0;    fi}service_start(){    if [ -f $PID_PATH_NAME ]; then        echo "$JAR_NAME is already running"        return 1;    else        echo "$JAR_NAME starting ..."        set -e        nohup java -Dfile.encoding=utf-8 \            -Xloggc:${PATH_LOG}/${JAR_NAME}_gc.log \      -XX:+PrintGCDetails  \       -XX:+PrintGCTimeStamps \       -XX:+PrintGCDateStamps \            -XX:+HeapDumpOnOutOfMemoryError \            -XX:HeapDumpPath=${PATH_LOG} \            -Xms256m \            -Xmx2048m \            -Duser.timezone=GMT+08 \            -jar $PATH_TO_JAR $START_COMMAND $PORT_DEFAULT 2>&1 | $COMMAND_CRONOLOG -S  ${PATH_LOG}/${JAR_NAME}_ln.out ${PATH_LOG}/${JAR_NAME}.%Y-%m-%d-%H.out >> /dev/null  &        if [ $? -ne 0 ];then            echo "$JAR_NAME started  failed"            exit 1        else            echo $! > $PID_PATH_NAME            echo "$JAR_NAME started ..."        fi        set +e        return 0;    fi}service_stop(){    if [ -f $PID_PATH_NAME ]; then        echo "$JAR_NAME stoping ..."                                                                                                                                           ps -ef | grep $PATH_TO_JAR | grep -v grep | awk '{print $2}' | xargs kill -15  >/dev/null 2>&1        echo "$JAR_NAME stopped ..."                                                                                                                                           rm -rf $PID_PATH_NAME         return 0;                                                                                                                                                 else                                                                                                                                                                              echo "$JAR_NAME is not running ..."        return 1;                                                                                                                                fi                                                                                                                                                                        }                                                                                                                                                                            service_tag(){    echo "----------------------------------------------------------------------------------------------------------"}service_info(){    service_tag    echo "info-use          service ${JAR_NAME} start|stop|status|restart"    echo "info-jar          $PATH_TO_JAR"    echo "info-log          ${PATH_LOG}/${JAR_NAME}_ln.out"    echo "info-gc-log       ${PATH_LOG}/${JAR_NAME}_gc.log"    echo "info-heapdump-log ${PATH_LOG}"    echo "info-memory       -Xms256m -Xmx2048m"    service_tag}# 接收命令开始case "$1" in    "status")        service_tag        service_status        service_info        ;;                                                                                                                                                                       "start")                                                                                                                                                                           service_status >/dev/null 2>&1        service_check        service_start                                                                                                                                                                service_tag        service_status        ;;                                                                                                                                                                       "stop")                                                                                                                                                                            service_status >/dev/null 2>&1        service_tag        service_stop                                                                                                                                                                 sleep 3        service_stop_force        ;;                                                                                                                                                                       "restart")                                                                                                                                                                         service_status >/dev/null 2>&1        service_stop        sleep 10        service_stop_force        service_check        service_start                                                                                                                                                              service_tag        service_status        ;;                                                                                                                                                                       *) echo "Usage: service ${JAR_NAME} status|start|stop|restart" ;;esac

  运行脚本:

service ser01 stop    #启动service ser01 start    #停止ps -ef | grep java       #服务运行情况

  shell 脚本确实很方便,虽然这会涉及到另一个专业领域的东西,但是自已使用一下也很安逸呢~

  尤其在排查问题时, shell方面的知识往往会帮自己很大的忙。

  想要将自己写的脚本添加到service命令中,只需将该脚本移动到  /etc/init.d/ 目录下,即可以使用  service xxx command 了。

转载于:https://www.cnblogs.com/yougewe/p/7077066.html

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