21 lines
398 B
C
21 lines
398 B
C
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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int main()
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{
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if (fork() == 0)
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{ // child proc
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printf("%d: child created by parent %d; executing 'p4'...\n", getpid(), getppid());
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execl("p4", "p4", NULL);
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printf("system call execl(): no success\n");
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}
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else
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{ // parent proc
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printf("%d: parent process\n", getpid());
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}
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wait(NULL);
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}
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