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/*
* flip -- put last argument after first argument
* $ cc -O2 -o flip flip.c
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int
main(int argc, char *argv[])
{
int i;
if(argc-1 == 0){
fprintf(stderr, "usage: %s command [arg ...]\n", argv[0]);
return 1;
}
/* Move last argument after first argument. */
if(argc-1 > 2){
for(i = argc; i >= 3; i--)
argv[i] = argv[i-1];
argv[2] = strdup(argv[argc]);
argv[argc] = NULL;
}
execvp(argv[1], argv+1);
err(1, "%s", argv[1]);
}
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