usdcat(1)

USDCAT(1) User Commands USDCAT(1)

NAME

usdcat - manual page for usdcat 25.11

SYNOPSIS

usdcat [OPTIONS] inputFiles...

DESCRIPTION

Write usd file(s) either as text to stdout or to a specified output file.

Positionals:

inputFiles ...
A list of input files

OPTIONS

-h,--help
Print this help message and exit
-o,--out file
Write a single input file to this output file instead of stdout.
--usdFormat usda|usdc
Use this underlying file format for output files with the extension 'usd'. For example, passing '-o output.usd --usdformat usda' will create output.usd as a text file. The USD_DEFAULT_FILE_FORMAT environment variable is another way to achieve this.
-l,--loadOnly
Attempt to load the specified input files and report 'OK' or 'ERR' for each one. After all files are processed, this script will exit with a non-zero exit code if any files failed to load.
-f,--flatten
Compose stages with the input files as root layers and write their flattened content.
--flattenLayerStack
Flatten the layer stack with the given root layer, and write out the results. Unlike --flatten, this does not flatten composition arcs (such as references).
--skipSourceFileComment
If --flatten is specified, skip adding a comment regarding the source of the flattened layer in the documentation field of the output layer.
--mask PRIMPATH[,PRIMPATH...]
Limit stage population to these prims, their descendants and ancestors. To specify multiple paths, either use commas with no spaces, or quote the argument and separate paths by commas and/or spaces. Requires --flatten.
--layerMetadata
Load only layer metadata in the USD file. This option cannot be combined with either --flatten or --flattenLayerStack.
November 2025 usdcat 25.11