使用场景：你已经运行了一个长时间任务，临时希望在任务结束后通知，这种情况下可以循环监控指定的PID号，如果PID消失了就发送通知，逻辑简单粗暴，但胜在好用

本篇内容为shell 调用钉钉通知后续

#!/bin/bash
set -e## 上图中 access_token字段
TOKEN=''
KEYWORD='hello' # 前文中设置的关键字
function call_webhook()
{
local msg=$1
local body=$(cat <<EOF
{"at":{"atMobiles":["1888888888"]},"text":{"content":"{{KEYWORD}} {{MSG}}"},"msgtype":"text"
}
EOF
)echo $body | sed -e "s#{{MSG}}#$msg#g" -e "s#{{KEYWORD}}#$KEYWORD#g" |  curl --location --request POST "https://oapi.dingtalk.com/robot/send?access_token=$TOKEN" \
--header 'Content-Type: application/json' \
--data @-
}target_pid=52397while true
doif ps -p $target_pid > /dev/nullthenecho "PID $target_pid is running $(date)"elseecho "PID $target_pid is not running. Sending notification..."call_webhook "PID $target_pid job run over"exit ;fisleep 60
done