37 lines
904 B
Bash
37 lines
904 B
Bash
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#!/bin/bash
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function checkPort() {
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ip_address=$1
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port=$2
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# 使用 telnet 检测连接，捕获输出
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output=$(timeout 3 telnet $ip_address $port 2>&1)
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# 输出捕获的内容（仅用于调试，可以删除）
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echo "Telnet Output: $output"
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# 根据输出内容判断是否连接成功
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if echo "$output" | grep -q -E "Unable to connect|Connection closed by"; then
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# 如果输出中包含 "Unable to connect" 或者 "Connection closed by"，返回 0 表示连接失败
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return 0
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else
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# 否则返回 1 表示连接成功
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return 1
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fi
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}
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# 调用 checkPort 函数，判断端口是否活跃
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checkPort $1 $2
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res=$?
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# 根据端口状态输出结果
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if [ "$res" -eq 1 ]; then
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echo "service on $1 $2 worked normally"
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else
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echo "service port: $2 is not active, try to restart it"
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eval $3 # 执行重启服务动作
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fi
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exit
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