bash script to check for folders containing two specific files recursively and print their path

Question

I want to check recursively for two specific files say "hem" and "haw" and print the folders containing both the files.

Answer 1

Try this Shellcheck-clean code:

shopt -s globstar

for hempath in ./**/hem ; do
    dir=${hempath%/*}
    [[ -e $dir/haw ]] && printf '%s\n' "$dir"
done

• See glob - Greg's Wiki for information about globstar and the ** pattern.
• See Removing part of a string (BashFAQ/100 (How do I do string manipulation in bash?)) for an explanation of ${hempath%/*}.
• The code uses ./**/hem instead of **/hem to ensure that all the matched paths start with ./ so it works even if the files are in the current directory (.).
• See the accepted, and excellent, answer to Why is printf better than echo? to understand why printf is used instead of echo to print the directory path.
• Note that support for globstar was introduced in Bash 4.0, and it was dangerous in versions prior to 4.3 because it used to follow symlinks, possibly leading to infinite recursion (and failure) or unwanted duplicates. See When does globstar descend into symlinked directories?.

Answer 2

find <top_folder> -name hem -o name haw -print

or

cd  <top_folder>
ls **/hem **/haw