# :DISK:WAVeform:FNAMe:AUPDate

:DISK Waveform Commands

- :DISK:WAVeform:FNAMe
- :DISK:WAVeform:FNAMe:AUPDate
- :DISK:WAVeform:FNAMe:USTandard
- :DISK:WAVeform:HEADer
- :DISK:WAVeform:LINTerpolate
- :DISK:WAVeform:REGion
- :DISK:WAVeform:SAVE
- :DISK:WAVeform:SAVE:FTYPe
- :DISK:WAVeform:SAVE:SOURce
- :DISK:WAVeform:SCOMpressed

## Command Syntax

    :DISK:WAVeform:FNAMe:AUPDate

## Description

Increments a file name's autonumber for the next file saved with the `:DISK:WAVeform:SAVE` command. The autonumber is placed at the end of the file name and begins with a hyphen followed by decimal digits:

    <type_><YYYY-MM-DD><_autonumber>.<extension>

An example autonumber would be Waveform_2020-10-23_1.h5. Saving a file with `:DISK:WAVeform:SAVE` does not increment the autonumber. You must use the `:DISK:WAVeform:FNAMe:AUPDate` command to increment the autonumber. Otherwise, the next file saved will have the same name as the last file saved.

If you have entered a custom file name, but want to return to using standard file name, use the `:DISK:WAVeform:FNAMe:USTandard` command.

Example File Names
Name | Type | Autonumber | Default Extension
--- | --- | --- | ---
Waveform_2017-04-08_1 | standard | yes | .h5
DUT | custom | no | .h5
DUT23 | custom | no | .h5
DUT_23 | custom | yes | .h5

## Example Command Sequence

    :DISK:WAVeform:SAVE:FTYPe HDF5
    :DISK:WAVeform:FNAMe "my_file_1"
    :DISK:WAVeform:SAVE  #  my_file_1.h5
    …
    …
    :DISK:WAVeform:FNAMe:AUPDate
    :DISK:WAVeform:SAVE  #  my_file_2.h5