Useful tips for everyday
What should the output of the ls command show? The default output of the ls command shows only the names of the files and directories,…
How do I see all git repositories? You can list the remote branches associated with a repository using the git branch -r, the git branch…
What is the result of select? The SQL SELECT statement returns a result set of records, from one or more tables. A SELECT statement retrieves…
What can you do with Markdown and latex? Markdown which is a markup language that is a superset of HTML. Latex to render mathematical and…
How do you power addressable LED strips? You need to run 5 VOLTs from the power supply to the LED strip. Both POSITIVE and NEGATIVE…
How do I find my AWS server specs? Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/ . In the navigation pane, choose Metrics. Choose the EC2 metric…
Where is my package JSON file? The package. json file is normally located at the root directory of a Node. js project. The name field…
Is it possible to block DNS? DNS blocking can be applied to individual servers/IP address, or entire blocks of IP addresses for multiple reasons. Some…
What happens during a rollback? Automatic and Manual Rollback If a user modifies a data field but does not keep the changes, the data is…
Can a transformer go from 3 phase to single phase? Above 10kVA the most common type of transformer used to supply a single phase system…