测试守护进程 脚本再次测试

准备 mygo.go

package main

import (
	"fmt"
	"os"
	"syscall"
	"time"
)

func main() {
	for {
		time.Sleep(time.Second)
		fmt.Println("name", os.Args[0])
		fmt.Println("os.Getpid", os.Getpid())
		fmt.Println("syscall.Getpid", syscall.Getpid())
	}
}

可以直接测试 ./mygo 也可以./mygo>1.txt

死循环+if

无需传参 很简单！
 

#!/system/bin/sh
while true
do
   procnum=`ps -ef| grep rpi_gw |grep -v grep |wc -l`
   if [ $procnum -eq 0 ]; then
       echo "Die rpi_gw"
   else 
      echo "Runing rpi_gw"
   fi

   sleep 3
done

死循环+if+带参+参数数目+退出不是return+date+注释

#!/system/bin/sh

#处理传入参数
echo "all parm num:$#"
   if [ $# -ne 1 ]; then
       echo "cmd with a TARGETTOKILL"
       exit 1
   fi    

#提示
TARGETTOSAVE="mygo"
TARGETTOKILL=$1

echo "TARGETTOSAVE--$TARGETTOSAVE"
echo "TARGETTOKILL--$TARGETTOKILL"

#死循环
while true
do
#任务 有 就杀死它 需要是传入的 全名!
   procid=$(pgrep $TARGETTOKILL)
   if [ -z "$procid" ]
   then
      echo "T1-Not Runing $TARGETTOKILL Do Nothing"
   else
      echo "T1-Runing $TARGETTOKILL id $procid KILL it!"
      kill $procid
   fi


#任务 没有 就使能它 不需要全名
   procnum=`ps -ef| grep $TARGETTOSAVE |grep -v grep |wc -l`
   if [ $procnum -eq 0 ]
   then
       echo "T2-Die $TARGETTOSAVE Go Actice it"
       cd /home/pi
       ./mygo 
   else 
       echo "T2-Runing $TARGETTOSAVE $procnum Do Nothing"
   fi

   sleep 3
#时间
date +%F" "%H:%M:%S
done

测试 后者比较麻烦 由其新启终端执行 他说已经有了 就不执行

觉得放弃后者 就用一个来做！

不知道怎么打印出来第二种的显示

以后再说吧

用这个

#!/system/bin/sh

#处理传入参数
echo "all parm num:$#"
   if [ $# -ne 1 ]; then
       echo "cmd with a TARGETTOKILL"
       exit 1
   fi    

#提示
TARGETTOSAVE="mygo"
TARGETTOKILL=$1

echo "TARGETTOSAVE--$TARGETTOSAVE"
echo "TARGETTOKILL--$TARGETTOKILL"

#死循环
while true
do
#任务 有 就杀死它 需要是传入的 全名!
   procid=$(pgrep $TARGETTOKILL)
   if [ -z "$procid" ]
   then
      echo "T1-Not Runing $TARGETTOKILL Do Nothing"
   else
      echo "T1-Runing $TARGETTOKILL id $procid KILL it!"
      kill $procid
   fi


#任务 没有 就使能它 不需要全名
   #procnum=`ps -ef| grep $TARGETTOSAVE |grep -v grep |wc -l`
   #if [ $procnum -eq 0 ]
   procnum=$(pgrep $TARGETTOSAVE)
   if [ -z "$procnum" ]
   then
       echo "T2-Die $TARGETTOSAVE Go Actice it"
       cd /home/pi
       ./mygo 
   else 
       echo "T2-Runing $TARGETTOSAVE $procnum Do Nothing"
   fi

   sleep 3
#时间
date +%F" "%H:%M:%S
done