Get total duration of .wav and .mp3 files in a directory

dur.sh

#!/bin/bash

# Function to calculate the total duration
calculate_total_duration() {
  local dir="$1"
  local total_duration=0

  # Loop through each audio file
  while IFS= read -r -d '' file; do
    # Check if the file is a .wav or .mp3 file
    if [[ $file == *.wav ]] || [[ $file == *.mp3 ]]; then
      # Use ffprobe to get the duration
      duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file" 2>/dev/null)

      # Add the duration to the total
      total_duration=$(awk "BEGIN {print $total_duration + $duration}")
    fi
  done < <(find "$dir" -type f \( -iname "*.wav" -o -iname "*.mp3" \) -print0)

  echo "$total_duration"
}

# Main script

# Check if a directory is provided as an argument
if [[ $# -ne 1 ]]; then
  echo "Usage: $0 <directory>"
  exit 1
fi

# Check if the directory exists
if [[ ! -d $1 ]]; then
  echo "Directory not found: $1"
  exit 1
fi

# Call the function to calculate the total duration
total_duration=0
while IFS= read -r -d '' sub_dir; do
  duration=$(calculate_total_duration "$sub_dir")
  total_duration=$(awk "BEGIN {print $total_duration + $duration}")
done < <(find "$1" -type d -print0)

# Display the total duration
echo "Total Duration: $total_duration seconds"