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1. Clear a Line in Bash

   In Windows, I'm used to being able to clear a line simply by hitting Esc, but it's not quite as easy from Bash.

   • You can use Ctrl+U to clear up to the beginning.
   • You can use Ctrl+W to delete just a word.
   • You can also use Ctrl+C …

2. Linux SSH Key Permissions Error

   When moving an SSH key to my cloud dev server, I ran in to this error:

   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   Permissions 0644 for '~/.ssh/id_rsa' are too open.
   It is required that your private key files are NOT accessible by others.
   This private key will be ignored.
   Load key …

3. Zero Padding Filenames

   I always hate when filename ordering gets screwed up because numbers aren't handled properly (1.txt, 10.txt, 2.txt, etc.), so the easy solution is to zero-pad the numbers. Renaming a bunch of files to add some zeros is no fun though, so here's some solutions.

   On Ubuntu, there's …

4. Quickly Add Permanent Bash Alias

   To make my life easier on my development box, I used this super simple bash oneliner to set up permanent aliases: echo 'alias python='python3'' >> ~/.bashrc. This writes a new line, containing the text within the quotes, to the bottom of the .bashrc file. This is loaded everytime bash is …