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Many a times developer do ask a common question that, we need to change existing data bearing field’s data type to another data type with out hampering existing data. Such as example, in database date field was in string value, Continue readingMongoDB change or update field type→

When you are using mongodb for large applications (heavy write and read intensive), then you probable noticed that mongod.log/mongos.log file is growing big in size with in a few time span. I saw 20GB mongos.log file size in a single Continue readingMongoDB Log Rotation Automation→

Like other programming languages, shell script also have same loop concept, let us look at different types of loop syntax how it will work in shell scripts. For loop #!/bin/sh for x in hi 1 * 2 A bye do Continue reading2. Shell script loop & conditional statement→

As we probably all know, shell script is badly required, when you thought to automate something in your operating system. We are here using Born shell(sh) and bash in linux ubuntu. cat /etc/shells #it will give us following shells /bin/sh Continue reading1. Shell script comment variable and wildcard→

Encryption at Rest – means, we need to encrypt our data that we want to store on disk. It can be achieved by following two forms. Application level encryption For application level encryption, it is not a feature offered by Continue readingMongoDB encryption at rest→