In ubuntu, it is
$ apache2 -v
In CentOS, it is
$ httpd -v
To find out where apache2 or httpd program is installed you can do the $ whereis apache2 or, $ locate httpd
In ubuntu, it is
$ apache2 -v
In CentOS, it is
$ httpd -v
To find out where apache2 or httpd program is installed you can do the $ whereis apache2 or, $ locate httpd
