批量生成用户名及随机密码的小工具

闲来无事，帮朋友写一个批量生成用户名及随机密码的小工具

1. #!/bin/bash
2. if [ -z "$1" ]
3. then
4. echo "Usage: ./genpasswd [-u user id] [-n user numbers] [-f password file]"
5. exit 1
6. fi
7. # get options
8. while getopts "u:n:f:" arg
9. do
10. case $arg in
11. u)
12. USER=$OPTARG
13. ;;
14. n)
15. NUMS=$OPTARG
16. ;;
17. f)
18. FILE=$OPTARG
19. ;;
20. ?)
21. echo "Usage: ./genpasswd [-u userid] [-n numbers] [-f file]"
22. exit 1
23. ;;
24. esac
25. done
26. # debug
27. #echo $USER
28. #echo $NUMS
29. #echo $FILE
30. # generate password
31. while [ $NUMS -gt 0 ]
32. do
33. USER=`expr $USER + 1`
34. NUMS=`expr $NUMS - 1`
35. PASSWD=`mkpasswd.pl -C 0 -s 0`
36. echo "$USER:$PASSWD" >> $FILE
37. done