Executing shell script with system() returns 256. What does that mean?

by

According to this and that, Perl’s system() returns exit values multiplied by 256. So it’s actually exiting with 1. It seems this happens in C too.

More Related Contents:

  1. Creating a daemon in Linux
  2. How to execute a shell script from C in Linux?
  3. fd leak, custom Shell
  4. Implementation of multiple pipes in C
  5. Pipes, dup2 and exec()
  6. argv: Sanitizing wildcards
  7. What are the flags and macros in a Makefile? [closed]
  8. How to write a signal handler to catch SIGSEGV?
  9. Where is the itoa function in Linux?
  10. Where is PATH_MAX defined in Linux?
  11. How to set the name of a thread in Linux pthreads?
  12. “undefined reference to `pow'” even with math.h and the library link -lm [duplicate]
  13. Build .so file from .c file using gcc command line
  14. How Can I debug a C program on Linux?
  15. How to use POSIX semaphores on forked processes in C?
  16. Pipe buffer size is 4k or 64k?
  17. How to wait for exit of non-children processes
  18. Compiler using local variables without adjusting RSP
  19. How to access mmaped /dev/mem without crashing the Linux kernel?
  20. How to solve “ptrace operation not permitted” when trying to attach GDB to a process?
  21. How can a shared library (.so) call a function that is implemented in its loader code?
  22. Memory usage of current process in C
  23. How can I include a needed C library using GCC?
  24. How to set up a cron job to run an executable every hour?
  25. What can cause a “Resource temporarily unavailable” on sock send() command
  26. Returning struct containing array
  27. How to read terminal’s input buffer immediately after keypress
  28. Efficient way to find task_struct by pid
  29. What is the difference between AF_INET and PF_INET in socket programming?
  30. Can you bind() and connect() both ends of a UDP connection

Leave a Comment