SIMPLE SOLUTIONS

EXPLAIN_SYSTEM_OR_DIE - reference manual online

Execute a shell command and report errors.

Chapter
explain_system_or_die(3)             Library Functions Manual            explain_system_or_die(3)

NAME explain_system_or_die - execute a shell command and report errors
SYNOPSIS #include <libexplain/system.h> void explain_system_or_die(const char *command); void explain_system_success_or_die(const char *command); int explain_system_success(const char *command);
DESCRIPTION These functions may be used to execute commands via the system(3) function, and report the results. explain_system_or_die void explain_system_or_die(const char *command); The explain_system_or_die function is used to call the system(3) system call. On failure an explanation will be printed to stderr, obtained from explain_system(3), and then the process terminates by calling exit(EXIT_FAILURE). This function is intended to be used in a fashion similar to the following example: int status = explain_system_or_die(command); command The command, exactly as to be passed to the system(3) system call. Returns: This function only returns on success, see system(3) for more information. On failure, prints an explanation and exits. explain_system_success_or_die void explain_system_success_or_die(const char *command); The explain_system_success_or_die function is used to call the system(3) system call. On failure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_system(3), and then the process terminates by calling exit(EXIT_FAILURE). This function is intended to be used in a fashion similar to the following example: explain_system_success_or_die(command); command The command, exactly as to be passed to the system(3) system call. Returns: This function only returns on success. On failure, prints an explanation and exits. explain_system_success int explain_system_success(const char *command); The explain_system_success function is used to call the system(3) system call. On fail‐ ure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_system(3). However, the priniting of an error message does not also cause exit(2) to be called. This function is intended to be used in a fashion similar to the following example: int status = explain_system_success(command); command The command, exactly as to be passed to the system(3) system call. Returns: the value returned by the system(3) system call. In all cases other than EXIT_SUCCESS, an error message will also have been printed to stderr.
SEE ALSO system(3) execute a shell command explain_system(3) explain system(3) errors exit(2) terminate the calling process
explain_system_or_die(3)
This manual Reference Other manuals
explain_system_or_die(3) referred by explain(3) | explain_system(3)
refer to _exit(2) | explain_system(3) | system(3)