Question

I am trying to match and loop through files with extensions .txt .h .py. in specific folder ${arg}. Here is what I did

for file in ${arg}/*.{txt, h, py}; do
  ...

done

However I got no such file for all extensions even though I have such files.

 line 24: dir1/*.{txt,: No such file or directory
 line 24: h,: No such file or directory
 line 24: py}: No such file or directory

How can I loop though the files with specified extensions using for ?

Answer 1

Lose the spaces; bash cares.

for file in "${arg}"/*.{txt,h,py}; do