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  • key

    There are several ways to use the term key in software development. You may have heard it a lot in regard to public and private keys. Those are used to encrypt and decrypt data sent over the wire. Another way is when you want to sort a large number of entries in a database. In that case, you most likely will need a unique key. For example, a page on the Internet is defined with a URI. You may define a canonical version of that URI making it unique. That canonical version is called a key for that page.

  • lsof

    List open files in your Linux system. This command lists all the files that are currently opened. If you are root, you can list all the files opened on the system. Otherwise, only those that you have permission to read or write will show up.

  • network
  • roaming
  • table