Check whether a certain file type/extension exists in directory

Question

How would you go about telling whether files of a specific extension are present in a directory, with bash?

Something like

if [ -e *.flac ]; then 
echo t         


        

Answer 1

For completion, with zsh:

if [[ -n *.flac(#qN) ]]; then
  echo true
fi

This is listed at the end of the Conditional Expressions section in the zsh manual. Since [[ disables filename globbing, we need to force filename generation using (#q) at the end of the globbing string, then the N flag (NULL_GLOB option) to force the generated string to be empty in case there’s no match.