shell_command(-Shell:atom)
- The Prolog flag
shell - The environment variable
%comspec%(Windows only) - The environment variable
$SHELL - The Prolog flag posix_shell
- Errors
existence_error(config, shell)if no suitable shell can be found.
shell_command(-Shell:atom)
shell%comspec% (Windows only)$SHELLexistence_error(config, shell) if no suitable shell can be
found.