Simple script lock

I don't know if you accidentally ran the script twice! Someone accidentally ran the script twice, and the port conflicted. So I wrote a simple script lock function to prevent repeated running of the script. #! Binbash # Thisisscriptlockprogrom # Writer:

I don't know if you accidentally ran the script twice! Someone accidentally ran the script twice, and the port conflicted.

So I wrote a simple script lock function to prevent repeated running of the script.

 

 
 


  
  
#! /Bin/bash

  
  
# This is script lock progrom

  
  
# Writer: Knight Song

  
  
Touch/Tmp/lock

  
  
[-E/tmp/lock] | quit 2

  
  
.

  
  
.

  
  
.

  
  
Rm-F/tmp/lock

 
 

It is really easy, that is, create a file after running the script, check whether the file exists, exit if the file exists, and continue if the file does not exist. When the script is completed, it is OK to delete the corresponding lock file.