# cupstestppd > Test conformance of PPD files to the version 4.3 of the specification. > Error codes (1, 2, 3 and 4, respectively): bad CLI arguments, unable to open file, unskippable format errors and non-conformance with PPD specification. > Note: this command is deprecated. > See also: `lpadmin`. > More information: . - Test the conformance of one or more files in quiet mode: `cupstestppd -q {{path/to/file1.ppd path/to/file2.ppd ...}}` - Get the PPD file from `stdin`, showing detailed conformance testing results: `cupstestppd -v - < {{path/to/file.ppd}}` - Test all PPD files under the current directory, printing the names of each file that does not conform: `find . -name \*.ppd \! -execdir cupstestppd -q '{}' \; -print`