The error messages for unknown command line options are very inconsistent. Here is an incomplete list of examples, taken from #10132 (comment):
msp@msppc:~/src/openssl$ for cmd in cms ocsp s_client smime ts; do openssl $cmd -verbose ; done
cms: Unrecognized flag verbose
ocsp: Unrecognized flag verbose
ocsp: Use -help for summary.
s_client: Option unknown option -verbose
s_client: Use -help for summary.
smime: Unrecognized flag verbose
smime: Use -help for summary.
ts: Unrecognized flag verbose
ts: Use -help for summary.
The error messages for unknown command line options are very inconsistent. Here is an incomplete list of examples, taken from #10132 (comment):