GLPI Update

#!/bin/sh

# Deletion of files from previous update that may disturb the script
echo 'We delete all files in /tmp with \"glpi\" in it that may disturb the script'
rm -RI /tmp/*glpi*

# Settling of variables for the update
read -p 'Enter the path of actual GLPI (example: /var/www/html/glpi):' glpi

# Go in working directory
#echo 'We go into a working directory'
#cd /tmp

# Save of in-prod glpi and database
echo 'We save files and database'
cp -R $glpi /tmp/glpibackup
read -p 'Files saved. What is your GLPI database name ?' db
read -p 'Who is your glpi database owner?' user
read -s -p 'What is your glpi database owner password ?' passwd
mysqldump -u $user -p$passwd $db > /tmp/$db'save'.sql
echo 'OK'

# Link download
read -p 'Enter the direct download link:' link
wget $link
echo 'Downloaded'

# extraction then deletion of archive
echo 'Extraction then deletion of archive'
tar -zxf glpi*.tgz -C /tmp
rm /tmp/glpi*.tgz
echo 'OK'

# Deletion of files folder in new glpi
echo 'Now we delete files folder of new GLPI'
rm -RI /tmp/glpi/files
echo 'OK'

# Moving of old glpi into working directory + renaming
echo 'We move in-prod glpi into the working folder'
mv $glpi /tmp/glpi_old
echo 'OK'

# Cleaning of old glpi "files"
echo 'We will now clean the files folder'
rm -RI /tmp/glpi_old/files/_*/*

# Copy of files that are in prod into new glpi
echo 'Then we copy in-prod files folder and db config file into new glpi'
cp -R /tmp/glpi_old/files /tmp/glpi/
cp /tmp/glpi_old/config/config_db.php /tmp/glpi/config/
echo 'OK'

# Moving of new glpi into web folder
echo 'We delete old glpi'
rm -RI /tmp/glpi_old
echo 'OK'

echo 'We move new glpi into web folder'
mv /tmp/glpi $glpi
echo 'OK'

# Settling of owner + rights
echo 'We set the rights and owner'
read -p 'Who is your web user ? (example: apache)' webuser
read -p 'Who is your web group ? (example: apache)' webgroup
chown -R $webuser:$webgroup $glpi
chmod -R 770 $glpi
find $glpi -type d -exec chmod 750 {} \;
find $glpi -type f -exec chmod 740 {} \;
echo 'OK'

echo 'The update is almost done. Now connect into the web interface to continue. Goodbye'