46 lines
726 B
C
46 lines
726 B
C
#include <stdio.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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main(int argc, char **argv)
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{
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int count, i, status;
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pid_t pid;
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if (argc < 3) {
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fprintf(stderr, "usage: %s count command [command args]\n",
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argv[0]);
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exit(1);
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}
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count = atoi(argv[1]);
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for (i = 0; i < count; i++) {
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pid = fork();
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switch (pid) {
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case -1:
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perror("fork");
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exit(1);
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case 0:
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/* child */
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if (execvp(argv[2], argv + 2) < 0) {
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perror("execvp");
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exit(1);
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}
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}
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}
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for (i = 0; i < count; i++) {
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pid = wait(&status);
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if (pid < 0) {
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perror("wait");
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exit(1);
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}
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fprintf(stderr, "process: %d exited with status: %d\n",
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pid, WEXITSTATUS(status));
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}
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exit(0);
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}
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