A Shell Quirk

By Ninad Pundalik

Here’s a quirk that I noticed, while coding today.  Was writing a function to test if a directory exists, and to make the directory doesn’t exist.  Shell offers the test command, used with an if statement, to solve this.  Here’s what I wrote:
[ expression ] is a synonym for [ test expression ].  Interestingly, this peice of code did not work.  So, I had to make do with this:
Could someone tell me if it’s a syntax/logic error that I have made?  Or is it a problem with the BaSH test command?