Problem resolution for password input in shell scripts for sudo, etc.

One, do not want to manually enter the method

1. Install expect tool: sudo apt-get install tcl TK expect

2. The contents of the script file are as follows:

#! /usr/bin/expect
Spawn sudo apt-get update
Send "zhoushuo\r"
Interact

Second, want to manually enter the password method:

1. script file Content instance:

• #! /bin/bash
• sudo apt-get update<<eof
• Password
• Eof

Problem resolution for password input in shell scripts for sudo, etc.