Shell grooming (35) = = = = = = Script for the simulated User login print menu

(a) Print a menu, accept an input, if there is no user to create a user and password, will create a user and password to write to a file, if there is a file to impersonate a user to log in, require the user name arbitrary, can be (^$ ^q), the password can be either a blank password, or any length of password.

The shell code is as follows:

#!/bin/bash

Create_user () {

Read-p "Plz Input name:" Name

Cat File | grep $name &>/dev/null

[$?-eq 0] && echo "The user is Exise" && exit 0

If [-Z $name];then

echo "No exise" && exit 0

Fi

Read-p "Plz Input Passwd:" Passwd

Read-p "Plz Input Passwd Again:" Passwd1

if [["$passwd"! = "$PASSWD 1"]]; then

echo "passwd not right" && exit 0

Fi

if [!-Z "$passwd"];then

echo "$name" $passwd "" >>file

echo "successfully!"

Fi

If [-Z ' $passwd '];then

echo "$name" "" >>file

echo "successfully!"

Fi

}

Login () {

Read-p "Plz Input name:" Name

A= "' Cat file | awk ' $1== ' $name ' "' |cut-d '-f2-'"

B= ' echo ' $a | Sed ' s///g '

Cat File | awk ' $1== ' $name ' "' &>/dev/null

If [$?-eq 0];then

Read-p "Plz Input your passwd:" passwd

C= ' echo $passwd | Sed ' s///g '

if [["$b" = "$c"]];then

echo "successfully!"

Else

echo Error

Fi

Else

echo "Not user;plz to Creiate"

Fi

}

Haha () {

Case $CC in

1)

Create_user

;;

2)

Login

;;

3)

Exit 0

;;

*)

Exit 1

;;

Esac

}

Cat << EOF

=========please choice=========

1) Create_user

2) Login

3) exit

Eof

Read-p "Choice:" CC

haha

Although this script is very simple, but I also according to different situation debugging for a long time.

This article is from the "It Life" blog, so be sure to keep this source http://dingxue.blog.51cto.com/12290895/1970428

Shell grooming (35) = = = = = = Script for the simulated User login print menu