solaris脚本改自动改密码

脚本:
cat chgpass.sh

#!/bin/sh
USERNAME=feifan
newpass=`cyt yanzi f8`
origpass=`grep $USERNAME /etc/shadow | nawk -F: '{print $2}'`
echo $origpass > $HOME/.pas
/usr/bin/echo ":%s/$USERNAME:$origpass/$USERNAME:$newpass\n:wq!\n" | vi /etc/shadow > /dev/null 2>&1

密码生成器:
cat cyt.c

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

int main(int argc,char *argv[])
{
  char *pass=argv[1];
  char *salt=argv[2];
  if (argc == 1)
  {
    printf("\tUsage:cyt  \n");
    printf("\t--salt maxlength 2 character valid\n");
    return(0);
  }
  printf("%s\n", crypt(pass, salt));
  return(0);
}