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Full Discussion: How to call Linux command in C
Top Forums Programming How to call Linux command in C Post 302136017 by draaghduhl on Friday 14th of September 2007 06:00:58 AM
Old 09-14-2007
Quote:
Originally Posted by sriram003
main()
{
system("split -l 50 -a 1 /absolutepath/sample.txt");
return 0;
}
If you could provide the return-value of system, one could examine why the call is failing.

try:
Code:
#include <stdio.h>
#include <stdlib.h>
int main(const int argc, const char* const* const argv) {
 int res;
 int err;
 res = system("split -l 50 -a 1 /absolutepath/sample.txt");
 fprintf(stdout,"execution returned %d.\n",res);
 if ((-1 != res) && (127 != res))
  fprintf(stdout,"now would be a good time to check out 'man split' to check what the resulting return-value (%d) means.\n",res);
 return res;
}

 

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LEARN ABOUT SUSE

ctrlaltdel

CTRLALTDEL(8)						     Linux Programmer's Manual						     CTRLALTDEL(8)

NAME

       ctrlaltdel - set the function of the Ctrl-Alt-Del combination

SYNOPSIS

       ctrlaltdel hard|soft

DESCRIPTION

       Based  on examination of the linux/kernel/sys.c code, it is clear that there are two supported functions that the Ctrl-Alt-Del sequence can
       perform: a hard reset, which immediately reboots the computer without calling sync(2) and without any other preparation; and a soft  reset,
       which sends the SIGINT (interrupt) signal to the init process (this is always the process with PID 1).  If this option is used, the init(8)
       program must support this feature.  Since there are now several init(8) programs in the Linux community, please consult	the  documentation
       for the version that you are currently using.

       ctrlaltdel is usually used in the /etc/rc.local file.

FILES

       /etc/rc.local

SEE ALSO

       simpleinit(8), init(8)

AUTHOR

       Peter Orbaek (poe@daimi.aau.dk)

AVAILABILITY

       The ctrlaltdel command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

Linux 1.2							  25 October 1993						     CTRLALTDEL(8)
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