In Bash scripts, many time we need to take some user inputs. We like to collect some information from user and use that information during script execution.
These interactive scripts are more global and flexible than normal scripts which contain static values for variables.
In bash, we have read command that used to collect user input and save it in variable for further use in script execution. Let’s see some of its examples to understand it in detail.

#!/bin/bash
echo -n "please type you name :"
read name
echo "Welcome $name, in World of Bash scripting"
=====================================
        OutPut
#./bash_read1.sh
please type you name :Reader
Welcome Reader, in World of Bash scripting

In above example, we used echo command for prompt interactive message and use read command for storing variable. Without echo it would not be possible to inform user for inputs. Whatever values we type will automatically assign
to variable “name” which was mention after read command. we can use as many as variables after read command. let’s see one examples for multiple variables values.

#!/bin/bash
echo -n "please type you names :"
read name1 name2
echo "Welcome $name1 and $name2, in World of Bash scripting"
=====================================
        OutPut
#./bash_read1.sh
please type you names :Reader1 Reader2
Welcome Reader1 and Reader2, in World of Bash scripting

In above examples, we tried to cover multiple variable in bash read command. we can see it is quit easy to use read command for single and multiple user inputs.
As we can see, we use echo for user interaction to display message for user, so that user provide input on same message. let’s try to remove it and use read command for same.

#!/bin/bash
read -p "please type you name :" name Name
echo "Welcome $name and $Name, in Bash script World"
=====================================
        OutPut
#./bash_read2.sh
please type you name :Reader
Welcome Reader and , in Bash script World

Sometime we need to hide our input, like providing password. In read command there is provision to do that as well. in general terms we called stty echoed. we can replicate same with “stty -echo”.
But in read command it is quit easy to perform same thing.

#!/bin/bash
read -p "please type you name :" name
read -sp "please type your password :" password  ; echo
echo "Helo $name, thanks for providing your login details, we will take it further"
=====================================
        OutPut
#./bash_read3.sh
please type you name :Reader
please type your password :
Helo Reader, thanks for providing your login details, we will take it further