Posts Tagged with "tricks"

Sometimes you might want to purge a set of similar Redis keys in one shot. So far, standard Redis "DEL" command does not allow to remove keys using patterns. However, there is a trick to do this action. Execute the following command in bash:

redis-cli -h [host] -p [port] KEYS "prefix:*" | xargs redis-cli DEL

Seems clear? Wait a minute! What if you use multiple databases (keyspaces) and need to remove keys from a database different from default (0) one? No problem there! Here is the solution:

From time to time we create HTML/CSS templates where we need to center a div or an image. For some newbies it poses a problem. In this blog post I'll show you one of the ways of CSS centering.

Suppose you have a div or an image (with the size 150px X 100px) that should be centered on the web page. First step you do is the following CSS:

centered {
  position:  fixed;
  top:  50%;
  left:  50%;
}

1. The first thing that you have to know - content is your number one and it's your primary priority. Therefore, make sure that you publish good, clear and unique content that is based and focused on your target keywords.

2. Quality backlinks is your number two. Buliding of a network of backlinks is a very important thing in terms of Search Engine Optimization. Make sure backlinks contain your keywords or key phrases between the tags.

3. Remember that one single link from a good site can beat 10 links from other 10 web sites with poorer quality.