Batch add or delete users

========================================================== ========================================================== ============

#! /Bin/bash

#

If [! $ #-EQ 1]; then

Echo './user. Sh -- add | -- del'

Exit 1

Fi

Case "$1" in

-- Add)

For I in {1 .. 10}

Do

If Id user $ I &>/dev/NULL; then

Echo "User $ I is exists ."

Else

Useradd user $ I

Echo "User $ I" | passwd -- stdin user $ I &>/dev/null

Echo "Add User user $ I finished ."

Fi

Done

;;

-- Del)

For I in {1 .. 10}

Do

If Id user $ I &>/dev/NULL; then

Echo "delete user $ I finished ."

Userdel-r user $ I

Else

Echo "User $ I is not found ."

Fi

Done

;;

*)

Echo './user. Sh -- add | -- del'

Esac

========================================================== ========================================================== ============

#! /Bin/bash

If [$ #-lt 2]; then

Echo "usage $0 -- add user1, user2, user3 | -- del user1, user2, user3 | -- help"

Exit 1

Fi

If [$1 = "-- add"]; then

For I in 'echo $2 | SED's/, // g''

Do

If Id $ I &>/dev/NULL; then

Echo "$ I exists ."

Exit 9

Else

Useradd $ I

Echo $ I | passwd -- stdin $ I &>/dev/null

Echo "Add User $ I finished ."

Fi

Done

Elif [$1 = "-- del"]; then

For I in 'echo $2 | SED's/, // g''

Do

If Id $ I &>/dev/NULL; then

Userdel-r $ I

Echo "delete user $ I finished ."

Else

Echo "No Sush $ I ."

Exit 9

Fi

Done

Elif [$1 = "-- Help"]; then

Echo "usage $0 -- add user1, user2, user3 | -- del user1, user2, user3 | -- help"

Else

Echo "usage $0 -- add user1, user2, user3 | -- del user1, user2, user3 | -- help"

Fi

This article from the "quiet fan Yin" blog, please be sure to keep this source http://mastters.blog.51cto.com/6516495/1530756