Development Tools

Here you can find all the posts categorized in Development Tools.

• Querying a specific name server using dig

  A practical tip on how to avoid cached results when looking up DNS records.

• Adding a user to the sudoers list in Ubuntu

  Stop using root for administrative tasks. Here is how to add a new user to the sudoers list in Ubuntu.

• A more powerful version of grep

  The utility command grep has a more powerful brother that let us use POSIX Extended Regular Expressions.

• Display disk usage with the du command

  How to display the total of the current directory or a particular directory, as well as listing subtotals (subdirectories).

• SSH client configuration - Multiple servers and different keys

  If you just like me daily connect to multiple SSH servers, then I have a tip for you.

• Display line numbers using the cat command

  A simple feature you one day may be glad you know.

• Make apt-get assume yes as the answer to prompts during package installations

  The way to avoid prompts when dealing with the APT package handling utility in Ubuntu Server.

• Create and extract tar archives compressed with gzip

  For some reason I always find it hard to remember how to create and extract gzipped TAR archives, but here is how to do it.