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Never add '.' to your path :(
So today was bad ... I was working in an Ubuntu environment and I was sick of typing the prefix "./" in front of my program name to run it in the terminal. I decided that I would add "." to my end of my path, that way all system calls still had precedence and I didn't have to type the annoying "./" before my program name to run it.
Everything was perfect, I was living it up and saving valuable key strokes until unix took revenge. I decided to run the "
rm" program like so
I needed to recursively remove all files from a directory, but since the "." was included in my path. "rm" also looked at the ".." folder, which then started removing files from all other places of my home directory
Luckily I had backed up my home folder not too long ago, but let this be a valuable lesson to all - don't include "." in your path.
Everything was perfect, I was living it up and saving valuable key strokes until unix took revenge. I decided to run the "
rm" program like so
rm -r *.
I needed to recursively remove all files from a directory, but since the "." was included in my path. "rm" also looked at the ".." folder, which then started removing files from all other places of my home directory
Luckily I had backed up my home folder not too long ago, but let this be a valuable lesson to all - don't include "." in your path. 
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