%= Made it inside the IF body so the process must have finished =%Įcho =įor people, like me, who land on this question searching for a Linux method to "batch" convert. If not defined endProc%%N if exist "%lock%%%N" 9>"%lock%%%N" (
%= still running then redirection will fail and the IF body will not run =% %= Redirect an unused file handle to the lock file. :: redirect stderr to null to suppress any error message if redirectionįor /l %%N in (1 1 %startCount%) do 2>nul ( :: If still launching then return as soon as a proc ends %= maintain an exclusive lock on the lock file until the process ends. %= Redirect the lock handle to the lock file. Set /a "startCount+=1, nextProc=startCount"Įcho -Įcho !time! - proc!nextProc!: starting %runCmd% Also incorporate a random number.įor /f "skip=1 delims=-+ " %%T in ('2^>nul wmic os get localdatetime') do (įor /l %%N in (1 1 %maxProc%) do set "endProc%%N="įor /f "tokens=* delims=:" %%F in ('%listCmd%') do ( :: Incorporate a timestamp from WMIC if possible, but does not fail if :: Get a unique base lock name for this particular instantiation. :: The remainder of the code should remain constant :: Define the maximum number of parallel processes to run.
Set runCmd=""C:\Program Files\Inkscape\bin\inkscape.exe" -export-type="png" "%%F"" :: something like YOUR_COMMAND -in "%%F" -out "%%~nF.ext" :: Define the command to run for each file, where "%%F" is an iterated file name from the list
:: Define the command that will be run to obtain the list of files to process Parallel execution of shell processes off To speed things up by utilizing all of your logic cores, you can use this multitasking approach: "C:\Program Files\Inkscape\bin\inkscape.exe" -export-type="png" "%%i"Īdditional options for export are listed in this Wiki page, and in the man page (official documentation): in particular, you can set the DPI, height/width, what zone you export, etc.
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