Categories
Server

How to Remove Directory and Subdirectories Recursively in Linux

Sometimes there is occasion where deleting files from Cpanel takes a very long time to finish.
For example because there are too many files under a directory.
In this situation we can use SSH to delete a directory and all files and subdirectories under that directory.

We can use the command below.
But be careful, do not enter wrong path.
You may delete the wrong directory. 🙂

rm -rf /your/directory/
Categories
Database Server

Regularly Runs MySQL FLUSH QUERY CACHE

In some situation, like suggested in some mysql optimization script, you may want to regularly run “FLUSH QUERY CACHE”.

First, open your terminal and try to run this command :

mysql -e 'FLUSH QUERY CACHE'

If there is no error, you can add that command in your cron job, such as this command to run it every 10 minutes :

*/10 * * * * mysql -e 'FLUSH QUERY CACHE'
Categories
Server

How to Create and Extract Tar.gz File in Linux

How to create tar.gz in Linux :

tar -zcvf "archive.tar.gz" "file.sql"
tar -zcvf "archive.tar.gz" "/home/example/public_html/"

How to extract tar.gz in Linux :

tar -zxvf "archive.tar.gz"
Categories
Server

How to Install PECL Memcache in WHM / CentOS

You can run these commands to install PECL memcache (not memcached).
However, this memcache will work with memcached.

wget http://pecl.php.net/get/memcache-3.0.8.tgz
tar xvfz memcache-3.0.8.tgz
cd memcache-3.0.8
phpize
./configure
make
make install

Take note of the php extensions directory that memcache is installed in.
Mine is: /usr/local/lib/php/extensions/no-debug-non-zts-20020429/

Then add this line to your php.ini

extension="/usr/local/lib/php/extensions/no-debug-non-zts-20020429/memcache.so"
Categories
Server

How to Install Memcached in WHM / CentOS

I use Centos & WHM.
Here is how to install memcached (not memcache) using command line.

First, installing memcached

wget http://memcached.org/latest
tar -zxvf memcached-1.x.x.tar.gz
cd memcached-1.x.x
./configure && make && make test && sudo make install