linux - syntax error near unexpected token '(' in bash script when selecting files

Question

Running this script bash ./cleanup.bash

#!/bin/bash
## going to dir moving stuff
rm -rf !(composer.json|.git)

Gives the error:

cleanup.bash: line 10: syntax error near unexpected token '('
cleanup.bash: line 10: 'rm -rf !(composer.json|.git)'

But if I run in in the terminal directly no problem rm -rf !(composer.json|.git)

I tried stripping out all other lines, still get the error.

How do I enter this correctly in the bash script?

Answer 1

I guess your problem is due the shell extended glob option not set when run from the script. When you claim it works in the command line, you have someway set the extglob flag which allow to !() globs.

Since the bash script whenever started with a #!/bin/bash starts a new sub-shell the extended options set in the parent shell may not be reflected in the new shell. To make it effect, set it in the script after the she-bang

#!/bin/bash

shopt -s extglob

## going to dir moving stuff
rm -rf !(composer.json|.git)