We can check the installed Plesk version from the shell by using the following commands.
1st)rpm -q psa
psa-9.5.4-cos5.build95101209.05
2nd) cat /usr/local/psa/version
9.5.4 CentOS 5 95110726.13
3rd)mysql -uadmin -p`cat /etc/psa/.psa.shadow` psa -e”select * from misc where param=’version'”
+———+——+
| param | val |
+———+——+
| version | 0954 |
+———+——+
You can use any one command from the above commands to check the Plesk version, in the above example the Plesk version is 9.5.4