bash 腳本：檢查 Apache 服務器是否已啟動並正在運行

Question

我是 bash 腳本的新手，並試圖弄清楚為什么下面的腳本輸出Apache server is not running而它運行正常。

ps cax | grep httpd
if [ $? -eq 0 ]; then
 echo "Process is running."
else
 echo "Process is not running."
fi

我在Ubuntu 14.04.2 LTS上運行它

另外，我如何更改腳本以測試安裝在另一台機器上的 apache 服務器。 請幫助

Answer 1

使用這個：

service apache2 status

或者這個：

service --status-all | grep apache2

Answer 2

這是一個 bash 腳本的工作示例，它檢查 apache 狀態，如果關閉則自動重新啟動，並通過 unicode 表情符號中的電報機器人發出警報。

#!/bin/bash
telegram=(xxxxx, yyyyyy)

if ! pidof apache2 > /dev/null
then
    # web server down, restart the server
    echo "Server down"
    /etc/init.d/apache2 restart > /dev/null
    sleep 10

    #checking if apache restarted or not
    if pidof apache2 > /dev/null
    then
        for i in "${telegram[@]}"
        do
        curl -s -X POST https://api.telegram.org/botxxxxxx:yyyyyyyyyyyyyyyyyyyyyyyyyy/sendMessage -d chat_id="$i" -d text="`echo -e '\U0001F525'` Apache stoped on Molib Stage. Automatically restarted succesfully."
        done
    else
        for i in "${telegram[@]}"
        do
        curl -s -X POST https://api.telegram.org/botxxxxxx:yyyyyyyyyyyyyyyyyyyyyyyyyy/sendMessage -d chat_id="$i" -d text="`echo -e '\U0001F525'` Apache stoped on Molib Stage. Automatically restart failed. Please check manually."
        done
    fi
fi

Answer 3

而不是 httpd 嘗試 grep “ apache2 ”。 確保嘗試使用下一個命令檢查服務並確定 apache 網絡服務器的注冊名稱： service --status-all

Answer 4

## Plz run this script .. its working 
------------------------------------------------
ps cax | grep httpd
if [ $? -eq 1 ]
 then
 echo "Process is running."
else if [ $? -eq 0 ]
 echo "Process is not running."
fi
fi
----------------------------------------------

Answer 5

這項工作在舊的 Debian 中非常完美。 請記住使用 bash 而不是 sh 運行。

在 Centos 中替換為 httpd。

#!/bin/bash
if [ $(/etc/init.d/apache2 status | grep -v grep | grep 'Apache2 is running' | wc -l) > 0 ]
then
 echo "Process is running."
else
  echo "Process is not running."
fi

Answer 6

這是菜單驅動的一站式 shell 腳本，您可以在其中檢查防火牆、apache 或任何其他 Web 服務，只需選擇以下腳本中的選項即可啟動或停止服務

echo "welcome please select your options"
read choice
firewall=`sudo systemctl status firewalld`
apache=`sudo systemctl status apache2`
firewall1=`sudo systemctl stop firewalld`
apache1=`sudo systemctl stop apache2`
startrfirewall=`sudo systemctl start firewalld`
startapache=`sudo systemctl start apache2`

case $choice in
         1) status of the firewall is $firewall
                          ;;
         2) status of apache is $apache
                          ;;
         3) echo stop firewall by $firewall1
                          ;;
         4) echo stop apache by $apache1
                          ;;
         5) echo start firewall by $startrfirewall
                          ;;
         6) echo start apache by $startapache
                          ;;
         *) echo exit
esac

Answer 7

試試看 - 在這里最簡單，最有教益，並且在 Ubuntu 20.04 上運行良好：

1. 捕獲狀態輸出到 bash 變量
2. “if”狀態包括子字符串（來自“Active：”語句） - 做你想做的工作
3. "else" - 做你定義的另一項工作

#!/bin/bash
servstat=$(service apache2 status)

if [[ $servstat == *"active (running)"* ]]; then
  echo "process is running"
else echo "process is not running"
fi

Answer 8

我根據以上將其組合在一起並制作了可以使用其他服務。

希望這可以幫助。

#!/bin/bash
# Must be running as root or via sudo permissions to be able to restart
# Put your process name restart command line in
PROCESS_NAME=httpd
if ! pidof $PROCESS_NAME > /dev/null
then
    # web server down, restart the server
    echo "Server $PROCESS_NAME down"
    /usr/sbin/apachectl restart > /dev/null
    echo "Tried restart of $PROCESS_NAME. Waiting 10 seconds to settle."
    # wait ten
    sleep 10

    #checking if process restarted or not
    if pidof $PROCESS_NAME  > /dev/null
    then
        echo "$PROCESS_NAME was down but is now up."
    else
        echo "$PROCESS_NAME is still down. Please take some action."
    fi
else
    echo "Server $PROCESS_NAME up."
fi