Linux Shell Script : Check If MySQL Packages Installed

[nixsavy]

This shell script can check if you have installed mysql and mysql-server packages in your Linux system.
Comments are provided over each line to understand the script better. Refer shell scripts programs to learn more.

Linux shell script

#!/bin/bash

#check if installed mysql and mysql-server


MYMYSQL=

#get the mysql package's version

MYMYSQL=$(rpm -qi mysql|grep Version)


#Check if we have got the mysql version or not.If got,then we have installed mysql.

if [ -n "$MYMYSQL" ]

then

echo "You have installed mysql"

else

echo "MySQL is not in your system."

fi


MYMYSQL=

#get the mysql-server package's version

MYMYSQL=$(rpm -qi mysql-server|grep Version)


#Check if we have got the mysql-server version or not.If got,then we have installed mysql.

if [ -n "$MYMYSQL" ]

then

echo "You have installed mysql-server"

else

echo "MySQL-SERVER is not in your system."

fi

Shell script output:

Case 1 output cause:You have installed mysql and mysql-server packages.

#./mymysql.sh

You have installed mysql

You have installed mysql-server


Case 2 output cause:You have installed mysql,and not installed mysql-server.

#./mymysql.sh

You have installed mysql

MySQL-SERVER is not in your system.


Case 3 output cause:You haven't installed mysql,and installed mysql-server.

#./mymysql.sh

MySQL is not in your system.

You have installed mysql-server


Case 4 output cause:You haven't installed mysql and mysql-server.

#./mymysql.sh


MySQL is not in your system.

MySQL-SERVER is not in your system.