Current Working Directory output in an alias

Question

I want to create an alias that will print out the current working directory sub name.

I have this:

BASENAME=${PWD##*/}
alias wai="echo $BASENAME"

This outputs the directory subname of the directory .bashrc is stored in. I want it to be the current working directory.

Sorry if this is simple, I'm new to bash.

Answer 1

The trick is really just in the single quotes. I believe you can achieve this by doing the following:

'echo ${PWD##*/}'

More details: Difference between single and double quotes in Bash

Answer 2

There is a command for this:

$ pwd
/path/to/current/directory

Am I missing something?

Edit based on your comment:

alias foo="pwd | rev | cut -d '/' -f1 | rev"

Answer 3

关于什么

alias wai='basename $PWD'