bash2

stat -c '%W %n' "$ROOT"/tmp/*"$DATE"*"$DB_SCHEMA"* | awk '$1>0' | sort -n | cut -d' ' -f2- | while read -r d; do [ -d "$d" ] && f=$(find "$d" -maxdepth 1 -type f -name 'verif*' | head -1) && [ -n "$f" ] && cat "$f" >> "$ROOT/tmp/combined_output.txt"; done