#include <unistd.h>
#include <string.h>
#include <stdio.h>

int main ( int argc, char *argv[] )
{
    int rslt=0;
    useconds_t microseconds=0;
    char *pname=NULL;
    char *ptr=NULL;
    
    /*
     * Get our own name (if provided)
     */
    pname = argv [ 0 ];
    if ( pname != NULL && *pname != '\0' )
    {
        ptr = strrchr ( pname, '/' );
        if ( ptr != NULL && strlen(ptr) > 1 )
            pname = ptr + 1;
    }
    
    if ( argc == 2 && argv[1] != NULL
                   && *argv[1] != '\0'
                   && isdigit ( *argv[1] ) )
    {
        microseconds = atoi ( argv [ 1 ] );
    }
    else
    {
        fprintf ( stderr, "Usage: %s microseconds\n", pname );
        return -1;
    }

    /*
    fprintf ( stderr, "argc=%i\nargv[1]=%s\n*argv[1]=%c\ndigit=%i\n",
              argc, argv[1], *argv[1], isdigit(*argv[1]) );
    */
    
    rslt = usleep ( microseconds );
    return rslt;
}