By using shell scripting, user may automate the process of download and install phpMyAdmin. One thing you setup phpMyAdmin is copy the `config.sample.inc.php` to `config.inc.php` and change the blowfish secret value to a random string.

### command : sed

You may use `sed` command to search and replace string in a file. And using `openssl` to generate a random string.

```sh
sed -i -e "s|\$cfg\['blowfish_secret'\] = ''|\$cfg['blowfish_secret'] = '$(openssl rand -base64 32)'|g" ./config.inc.php
```

The command shown above is an example of `sed` command to generate a random as the blowfish secret value.

### Full sample

Codes below is the full sample for download phpMyAdmin from official web site and extract to machine.

```sh
#! /bin/sh

wget -O /opt/pya.zip https://files.phpmyadmin.net/phpMyAdmin/4.9.0.1/phpMyAdmin-4.9.0.1-all-languages.zip

unzip /opt/pya.zip -d /opt

rm /opt/pya.zip

cp /opt/phpMyAdmin-4.9.0.1-all-languages/config.sample.inc.php /opt/phpMyAdmin-4.9.0.1-all-languages/config.inc.php

sed -i -e "s|\$cfg\['blowfish_secret'\] = ''|\$cfg['blowfish_secret'] = '$(openssl rand -base64 32)'|g" /opt/phpMyAdmin-4.9.0.1-all-languages/config.inc.php
```