如何检查批处理文件是否运行并避免双重执行？

Question

I want to make a batch script but i want to avoid a dual execution. So i have tried to check if it's running.

I used the following method but i am taking this message ERROR: The process "MyBatchTool" not found

echo off
TITLE MyBatchTool
SETLOCAL ENABLEDELAYEDEXPANSION
tasklist /fi "imagename eq MyBatchTool" |find ":" > nul
if errorlevel 1 echo "Is Running"
pause

Do you have a suggestion ?

Answer 1

echo off
TITLE MyBatchTool
SETLOCAL ENABLEDELAYEDEXPANSION
tasklist /fi "imagename eq MyBatchTool" 2>nul |find ":" > nul 2>nul && (
   echo "Is not Running"
   color
)||(
    echo "Is running"

)
pause

Answer 2

You could use a file lock, the lock will be removed when the batch file exits even when an error occurs.
And it's safe that only one process can hold the lock.

2> nul (
    9> lock.tmp 2>&1 (
    call :main
    ) || ( echo Is still runiing )
)
exit /b

:main
echo This will only run in one instance
ping -n 10 localhost

The first part is for creating an exclusive lock file. The 2>nul supresses the error message when you try to start the batch a second time while it's running.

For more examples and descriptions you could search for dbenham's posts to this topic at SO or dostips.com