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#define _POSIX_C_SOURCE 200809L
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define NOT_RUN (126)
#define NOT_FOUND (127)
int main(int argc, char *argv[])
{
if (argc < 2 || argv == NULL) {
fprintf(stderr, "%s: missing operands\n", argv[0]);
return NOT_RUN;
}
execvp(argv[1], argv + 1);
fprintf(stderr, "%s: %s: %s\n", argv[0], argv[1], strerror(errno));
if (errno == ENOENT) {
return NOT_FOUND;
}
return NOT_RUN;
}
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