Five Useful Ways to Use the jpeginfo Command

The jpeginfo command-line tool is a handy utility for analyzing and checking JPEG files. Whether you're verifying image integrity, checking for corruption, or automating image inspections in scripts, jpeginfo can help. Here are five different ways you can use it:

1. Check for Corrupt JPEG Files

You can quickly scan a directory for corrupt JPEG files using:

jpeginfo -c *.jpg

This command checks the integrity of each file and reports if it's "OK" or "BROKEN". Very useful for validating large image libraries.

2. Get Basic Info About JPEG Files

To view basic information like image resolution and quality factor:

jpeginfo *.jpg

This displays width, height, and compression details for each JPEG image.

3. Recursively Check JPEGs in Subdirectories

Use find with jpeginfo to scan images in subfolders:

find . -name "*.jpg" -exec jpeginfo -c {} \;

This is ideal for large projects where images are stored in nested directories.

4. Filter Only Broken JPEGs

If you want to list only the broken JPEG files, you can combine jpeginfo with grep:

jpeginfo -c *.jpg | grep -i "BROKEN"

This helps in isolating corrupt files for deletion or recovery.

5. Use in Batch Scripts for Automation

You can incorporate jpeginfo into shell scripts to automate image validation tasks:

#!/bin/bash
for img in *.jpg; do
    if ! jpeginfo -c "$img" | grep -q "OK"; then
        echo "Corrupt file detected: $img"
    fi
done
    

This script checks each JPEG in a folder and logs the name of corrupt files.

Conclusion

jpeginfo is a simple yet powerful tool for anyone working with JPEG files. From quick integrity checks to scripting automation, it helps ensure your images are clean and usable.