locking a file

I store a data file on my NAS so it can be accessed from multiple computers on my network.
It is opened with a BAT file that downloads it to the computer, opens the program, then uploads it back to the NAS when the program is closed.
Is there a way, in the BAT file, to lock the data file on the NAS when it is downloaded, then unlock it when it is uploaded???
I want to do this so multiple computers can't open the data file at the same time.

no, it is a data file-specifically Quicken. I can run it from the NAS, but it runs a lot faster if it is on the computer.
If I run it from the NAS it is locked when I open QW. Is there some code I can execute from the BAT file to lock it on the NAS, then unlock it?

Samuria said:

How are files permissions set on the NAS. If it was windows you could set has hidden so no one could see it or set it read only There must be simler on nas. doesnt quicken have a multi user option.

It would be safer to move the file to pc then nove it back if accounting data gets nackered it can be a nightmare

Yes, my COMPUTER is a PC. I can set the file as READ only on the NAS using File Explorer. How do I do that in a BAT file?

- - - Updated - - -

OK, I figured that one out,
attrib +r "[file path\name]"
I don't need to reset it because it is copying back a file that is unlocked.

now how do I query if the file is read only?
That would be
attrib "[file path\name]"

BUT how do I use an IF stmt to detect the R in the response that will be in the 6th position?

I think this is what you're after.


Batch Script - Reading from Files

For /f - Loop through text - Windows CMD - SS64.com

Way to feed the student instead of making him/her work for their food... LOL!

Try3 said:

Here you go.

Code:

Set "TargetFile=E:\Wherever\Test & File.pdf"
If Not Exist "%TargetFile%" ((echo Target file does not exist, error processing needs to be initiated) & (Pause))
For %%X  in ("%TargetFile%") Do Set "CurrentAttrib=%%~aX"
If Not "%CurrentAttrib:R=%"=="%CurrentAttrib%" Echo Target file R attrib is set
If "%CurrentAttrib:R=%"=="%CurrentAttrib%" Echo Target file R attrib is not set
Pause at end during testing

Denis

Thank you Try3
I am not a programmer, just an OLD BSEE. I can follow most programming and create simple BAT files to mildly complex ones with help like yours. It has been a VERY long time since I was proficient with CPM assy code. But some code takes a while to figure out. This is a little more involved and it confuses me, as I only do this on occasion and forget things rapidly [CSR]. HOWEVER, I did get it all figured out and worked all day to get it "perfect". This is the result. (My actual path & filename are replaced with "path/filename".)

Code:

@echo off
:: set color to white on blue
color 17
echo:
echo:
echo:
echo:
echo:
echo:
echo:
echo:
Set "TargetFile=\\path\filename.QDF"
For %%X  in ("%TargetFile%") Do Set "CurrentAttrib=%%~aX"
If Not "%CurrentAttrib:R=%"=="%CurrentAttrib%" (
:: set color to white on red
color 4f
echo Q U I C K E N   I S   O P E N   O N   A N O T H E R   C O M P U T E R
echo:
echo:
echo:
echo:
echo:
echo:
echo:
echo:
(pause) & (exit))
echo:
echo     ******************************************************************
echo:
echo     NOTE: QUICKEN CANNOT BE OPENED ON MORE THAN ONE COMPUTER AT A TIME
echo:
echo     ******************************************************************
echo:
echo     This BAT file first looks to see if the QDF on the NAS is Read Only.
echo     If it is, a message is displayed on a red window, and it exits after
echo     a key is pressed. If it is there, these instructions are displayed
echo     on a blue window, the NAS file is set to Read Only and the QDF file
echo 	 is copied to the computer with xcopy and verify.Then it opens QW.
echo     When QW closes, the QDF file is copied back to the NAS with verify
echo     using xcopy which resets the RO bit.echo:
echo:
echo:
echo     *******************  DO NOT CLOSE THIS WINDOW  ********************
echo: 
echo           IT MUST REMAIN OPEN TO COPY THE QDF FILE BACK TO THE NAS.
echo:
echo     *******************************************************************
echo:
echo:
echo     ******************************FILE IS BEING COPIED TO COMPUTER
echo:
xcopy /y /v "%TargetFile%" "path\"
attrib +r %TargetFile%
"C:\Program Files (x86)\Quicken\qw.exe"
echo:
echo:
echo:
echo:
echo     ******************************FILE IS BEING COPIED BACK TO NAS
echo:
echo f|xcopy /Y /v "path\filename.QDF" "%TargetFile%"

Thanks again.
Bill