execute_process(COMMAND <cmd1> [<arguments>] [COMMAND <cmd2> [<arguments>]]... [WORKING_DIRECTORY <directory>] [TIMEOUT <seconds>] [RESULT_VARIABLE <variable>] [RESULTS_VARIABLE <variable>] [OUTPUT_VARIABLE <variable>] [ERROR_VARIABLE <variable>] [INPUT_FILE <file>] [OUTPUT_FILE <file>] [ERROR_FILE <file>] [OUTPUT_QUIET] [ERROR_QUIET] [COMMAND_ECHO <where>] [OUTPUT_STRIP_TRAILING_WHITESPACE] [ERROR_STRIP_TRAILING_WHITESPACE] [ENCODING <name>] [ECHO_OUTPUT_VARIABLE] [ECHO_ERROR_VARIABLE] [COMMAND_ERROR_IS_FATAL <ANY|LAST>])