linux通过lsof判断文件是否正在被读

最新推荐文章于 2023-05-17 01:57:02 发布

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最新推荐文章于 2023-05-17 01:57:02 发布

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分类专栏： Golang Linux 文章标签： linux notepad++ 运维

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linux通过lsof判断文件是否正在被读被写

package main

import (
   "os"
   "time"
)

func main() {
   os.Open("/opt/chaosblade/logs/1.txt")  //O_RDONLY
   time.Sleep(time.Second * 1000)
}

package main

import (
   "fmt"
   "os"
   "strconv"
   "time"
)

func main() {

   f, err := os.OpenFile("/opt/chaosblade/logs/1.txt", os.O_WRONLY, 0)
   fmt.Println(f.Name(), err)
   i := 1
   for {
      str := strconv.Itoa(i)
      f.Write([]byte(str))
      i++
      time.Sleep(time.Second * 2)
      fmt.Println("tick")
   }

}

lsof -f -- /opt/chaosblade/logs/1.txt

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

main 40064 root 3w REG 253,0 101 375776545 /opt/chaosblade/logs/1.txt

hello 43226 root 3r REG 253,0 101 375776545 /opt/chaosblade/logs/1.txt

w表示write

r表示read

但是不能看到vim /opt/chaosblade/logs/1.txt 这个进程

c# program is not able to detect if file is open in notepad or notepad++