ipptool --version (return code: 0)
CUPS v2.2.2
ipptool --help (return code: 1)
Usage: ipptool [options] URI filename [ ... filenameN ]
Options:
--help Show help.
--stop-after-include-error
Stop tests after a failed INCLUDE.
--version Show version.
-4 Connect using IPv4.
-6 Connect using IPv6.
-C Send requests using chunking (default).
-I Ignore errors.
-L Send requests using content-length.
-P filename.plist Produce XML plist to a file and test report to standard output.
-S Test with SSL encryption.
-T seconds Set the receive/send timeout in seconds.
-V version Set default IPP version.
-X Produce XML plist instead of plain text.
-c Produce CSV output.
-d name=value Set named variable to value.
-f filename Set default request filename.
-i seconds Repeat the last file with the given time interval.
-l Produce plain text output.
-n count Repeat the last file the given number of times.
-q Run silently.
-t Produce a test report.
-v Be verbose.
-E Test with HTTP Upgrade to TLS.