Programming

 
#shell script echo.sh to display the string
echo $1

 
#include<stdlib.h>
int 
main()
{
  const char *str = "hello all";
  system("sh echo.sh str");
}

#include <stdlib.h>

int main()
{
  const char *str = "echo hello all";
  system(str);
}

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

int main()
{
  const char *str = "hello all";
  char cmd[30];
  sprintf(cmd, "./echo.sh %s", str);
  system(cmd);
}