Question

以下代码的目的是检查JBoss的状态，while循环迭代直到JBoss状态变为“DOWN＆＃39;州。 `

    JBOSS_ROOT=/opt/app/jboss/jboss.sh

time=1
while  [ $JBOSS_ROOT status | egrep -nq "DOWN"  ]
  do
        echo "JBoss stooping, please wait ......."
        sleep 1m
        if [ $time -gt 6 ]
         then
            echo "Something went wrong.. it's been running more than 5 minutes, please check JBoos server log and deployments"
            exit
        fi

        time=$(expr "$time" + 1)
  done

echo "JBoss stopped"

`

$JBOSS_ROOT status returns "JBoss DOWN" if JBoss in down( stop position).  
$ JBOSS_ROOT状态返回＆＃34; JBoss（pid：32627）正在运行＆＃34;如果JBoss在运行（开始位置）。

在while循环中抛出错误。说./stop.sh：第5行：[：缺失]＆＃39;

Answer 1

同时抛出的错误是因为bash不允许在内部管道

用

替换while [ $JBOSS_ROOT status | egrep -nq "DOWN" ]

while [ $($JBOSS_ROOT status | egrep -nq "DOWN") ]

    JBOSS_ROOT=/opt/app/jboss/jboss.sh

time=1
while  [ $JBOSS_ROOT status | egrep -nq "DOWN"  ]
  do
        echo "JBoss stooping, please wait ......."
        sleep 1m
        if [ $time -gt 6 ]
         then
            echo "Something went wrong.. it's been running more than 5 minutes, please check JBoos server log and deployments"
            exit
        fi

        ((time=$time+1))
  done

echo "JBoss stopped"

同样time=$(expr "$time" + 1)无法正常工作time的价值为1+1。您可以使用((time=$time+1))来评估算术表达式。

当循环检查JBoss状态是否关闭时，给出错误

1 个答案: