I have been reading this thread about detecting a locked file, and now I would like to implement it in my scripts, so I will need a way to programatically detect it in Windows shell scripting.
The accepted solution gives a way to hold a file open/locked:
(
>&2 pause
) >> test.txt
but this solution needs a key pressing.
I would like to create a Windows shell script similar, like this:
[Create and locking of c:\Temp\ProgramRunning.lck]
--------------- Rest of the Script ---------------
[Blah blah blah]
---------- End of the Main Body the Script ----------
[Unlocking and deletion of c:\Temp\ProgramRunning.lck]
So, when the scripts finishes, the lock file gets deleted (and unlocked, of course). If this script gets stopped, Ctrl+C, window closed, hanging of the system or whatever, the lockfile is not deleted, but is unlocked.
How could I do that?
You can use call combined with output redirection to hold a file open until the call returns:
call :main 3>myopenfile.txt
goto :eof
:main
rem do whatever here
goto :eof
If needed, you can write to the file from within the call like this:
>>&3 echo hi
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