Resolved: for-loop for filename that have a specific string or a specific extension

Question:

• On a for-loop how do you search for both a specific string or a filename extension?

I have files that have no extension but have the string “-DT-” in the filename, and other files that have the extension .fff. I want to process both types.

local dir imfiles

for imfiles in "$dir"**/*-DT-!(.jpg); do
   printf "File processed: ${imfiles}\n"
done

• How can I make the for-loop to not only look for files that have the string -DT- but also files that have an extension .fff?

The result would be the for-loop processing both types of files. I have tried using an array, but it didn’t work. I have seen a lot of examples of for-loop but none approaching this specific scenario.

Answer:

Try

shopt -s dotglob extglob nullglob globstar

for imfiles in "$dir"**/@(*-DT-!(*.jpg)|*.fff); do
   printf "File processed: ${imfiles}\n"
done

• See the extglob section in glob – Greg’s Wiki for an explanation of !(*.jpg) and @(*-DT-!(*.jpg)|*.fff).

If you have better answer, please add a comment about this, thank you!