coqchk --version (return code: 0)
The Coq Proof Checker, version 8.6 (July 2017)
compiled on Jul 27 2017 8:50:48
coqchk --help (return code: 1)
Usage: coqchk <options> modules
coqchk options are:
-R dir coqdir map physical dir to logical coqdir
-admit module load module and dependencies without checking
-norec module check module but admit dependencies without checking
-where print coqchk's standard library location and exit
-v print coqchk version and exit
-boot boot mode
-o, --output-context print the list of assumptions
-m, --memory print the maximum heap size
-silent disable trace of constants being checked
-impredicative-set set sort Set impredicative
-h, --help print this list of options