1&gt;$ nano <a target="_blank" href="http://First.sh">First.sh</a>
Add the following bash script to the file and save the file.
#!/bin/bash echo "Hello World"
$ chmod a+x <a target="_blank" href="http://First.sh">First.sh</a> $ ./<a target="_blank" href="http://First.sh">First.sh</a>
o/p -&gt; Hello World
2&gt; How to read user input
In bash, we can take user input using the <code>read</code> command.
<pre><code class="lang-plaintext">read variable_name
</code></pre>
To prompt the user with a custom message, use the <code>-p</code> flag.
<code>read -p "Enter your age" variable_name</code>
Example:
<pre><code class="lang-bash">#!/bin/bash

echo "Enter a numner"
read a

echo "Enter a numner"
read b

var=$((a+b))
echo $var
</code></pre>

1&gt;*$* nano [First.sh](http://First.sh)

Add the following bash script to the file and save the file.

#!/bin/bash  
echo "Hello World"

$ chmod a+x [First.sh](http://First.sh)  
$ ./[First.sh](http://First.sh)

o/p -&gt; Hello World

2&gt; **How to read user input**

In bash, we can take user input using the `read` command.

```plaintext
read variable_name
```

To prompt the user with a custom message, use the `-p` flag.

`read -p "Enter your age" variable_name`

**Example:**

```bash
#!/bin/bash

echo "Enter a numner"
read a

echo "Enter a numner"
read b

var=$((a+b))
echo $var
```

Bash Scripting Programs