Question

i just want to implement below statement

"if bin folder is not available in current directory then make new bin folder & 
if bin folder is available then its do nothing" 

can anybody give me any idea how can i do this?

EDIT :
i dont want any error like

mkdir: cannot create directory `./bin `./bin': File exists

Answer 1

You can just do this:

-mkdir ./bin

If ./bin already exists then mkdir will fail silently, otherwise it will create the directory.