Renumbering files

cday · Post by **cday** » Mon Mar 27, 2017 8:37 pm

The following option was recently added to NConvert to enable files to be renumbered:

-n start end step : Begin End Step (for image sequence)

If I use the following code to renumber four input files 01L 01R 02L 02R :

Code: Select all

nconvert -n 1 4 1 -out jpeg -o Output\###.jpg Input\*.jpg

Expected result: the files are renumbered to 001 002 003 004

Actual result:

Code: Select all

Conversion of Input\01L.jpg into Output\001.jpg OK
Conversion of Input\01L.jpg into Output\002.jpg OK
Conversion of Input\01L.jpg into Output\003.jpg OK
Conversion of Input\01L.jpg into Output\004.jpg OK
Conversion of Input\01R.jpg into Output\001_1.jpg OK
Conversion of Input\01R.jpg into Output\002_1.jpg OK
Conversion of Input\01R.jpg into Output\003_1.jpg OK
Conversion of Input\01R.jpg into Output\004_1.jpg OK
Conversion of Input\02L.jpg into Output\001_2.jpg OK
Conversion of Input\02L.jpg into Output\002_2.jpg OK
Conversion of Input\02L.jpg into Output\003_2.jpg OK
Conversion of Input\02L.jpg into Output\004_2.jpg OK
Conversion of Input\02R.jpg into Output\001_3.jpg OK
Conversion of Input\02R.jpg into Output\002_3.jpg OK
Conversion of Input\02R.jpg into Output\003_3.jpg OK
Conversion of Input\02R.jpg into Output\004_3.jpg OK

Each input file is renumbered four times instead of once...

Am I misunderstanding the intended use of the option, or is this a bug?

Post by **xnview** » Mon Mar 27, 2017 11:31 pm

-n was not recently added

you need to use

Code: Select all

nconvert -n 1 4 1 -out jpeg -o Output\###.jpg Input\###.jpg

cday · Post by **cday** » Tue Mar 28, 2017 3:14 pm

xnview wrote:-n was not recently added

You are right

But I'm confused because I clearly recall an existing option being modified within the last year or two to add, I think, a step parameter, but I can't find any reference to that now.

xnview wrote:you need to use
Code: Select all
nconvert -n 1 4 1 -out jpeg -o Output\###.jpg Input\###.jpg

I tried that code and many variations, but couldn't get the expected renumbering...

I don't know if the renumbering option could possibly only work for a filelist input, for example??

BTW in testing older NConvert versions, I believe I saw different results in recent versions compared with earlier versions, but as none actually worked I didn't stop to record the actual outputs. I mention it in case the issue arises in the future in another thread.

I finally found the following using NConvert without the -n option works:

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nconvert -o Output\###.jpg Input\*.jpg

As my immediate need is to renumber files sequentially incremented by one using simple code, that one-line solution meets my needs very well! Thanks for giving us NConvert!

XnTriq · Post by **XnTriq** » Tue Mar 28, 2017 8:45 pm

XnView Software

Renumbering files

Renumbering files

Re: Renumbering files

Re: Renumbering files

Re: Renumbering files