Linux Interview Questions

Ssh keys are generated in pair and are valid as a pair. These are not tied to any user. Sometimes user info goes into the read more

Using functions in bash is fairly useful to organise and reuse code. Here is quick beginner tutorial with examples on using bash functions. Declaring functions read more

To check if a variable is set or empty, we can use couple of approaches. One approach is to use empty string check (if [ read more

Global variables can be accessed in bash function without declaring anything and when these are modified the behaviour depend on whether function is called in read more

Command line utility ssh-keygen can be used to generate rsa or dsa public and private keys. By default it generates rsa keys. Here are commands read more

Usually anytime a file a edited, its timestamp is also changed. There are cases when you want to change the content of a file but read more

Sometimes we want to access a web site from a different location or ip to see how various things appear on the site. There can read more

When mysql server is hosted on a cloud environment like amazon aws/ec2 or rackspace, connecting to it using mysql GUI tools may not be possible without read more