People that work with Docker know it is easy to create a large number of containers. Occasionally you need to stop all running containers on your machine. This can be…
Neo4j is the world’s leading graph database. Fortunately, Neo Technology publishes official Neo4j Docker images which makes it very easy to get started. Once you have Docker running, simply use…
jq is a lightweight command line JSON processor that is very easy to use. Sometimes it is helpful to see your data sorted by a particular field value. Luckily jq…
jq is a lightweight command line JSON processor that is very easy to use. Sometimes being able to use variables within a jq script is very useful. Below are various…
It is generally recommended to always compress intermediate map output. This is because IO and network transfer are big bottlenecks in Hadoop, and compression can help with both of these…
Often when working with JSON in a Linux/Unix environment, it is nice to be able to filter records based on the values of certain fields. jq is a lightweight command…
There are many ways to left pad numbers in Linux. Usually this seems to be done by adding leading zeros in front of the main number. A few examples of…