osx - shell script - creating folder structure -


i wrote little shell script(test.sh) create basic folder structure:

#!/bin/bash  # check if directory exists, # if doesnt, create one. if [ ! -d "~/.dir1" ];         mkdir ".dir1" else         rm -rf ".dir1"         mkdir ".dir1" fi

when run 

test.sh

in console, hidden folder created.

but: when run again tells me:

mkdir: .dir1: file exists

but exist because removed in shell script before created new one! why display message?

thanks , greetings!

replace

[ ! -d "~/.dir1" ]

by

[ ! -d "${home}/.dir1" ]

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