Apache:
#httpd –v
If Ubuntu try:
#apache2 -v
MySQL:
On a server running Plesk:
#mysql -uadmin -p`cat /etc/psa/.psa.shadow`
>SELECT version();
On a server running WHM/cPanel:
#mysql
SELECT version();
PHP:
#php –v
Perl:
#perl -v
Python:
#python -v