linuxbashshellbrace-expansion

Brace Expansion not working bash

I am trying to use brace expansion in a bash script as follows. 

#!/bin/bash
document_root="/var/www/www.example.com"
`chmod -R g+w $document_root/{../captcha,../files}`

this gives me the error

chmod: cannot access `/var/www/www.example.com/{../captcha,../files}': No such file or directory

but when I run this in a terminal it works just fine.

Solution 
  • #!/bin/bash
document_root="/var/www/www.example.com"
chmod -R g+w $document_root/{../captcha,../files}
    1. Don't prefix a variable with $ when you are assigning to a variable, only when expanding
    2. You don't need the backticks around chmod, doing so treats the whole thing as a command