Resize all pictures in a folder and create animated GIF in Linux Bash with ImageMagick

1. Install ImageMagic

   sudo apt install imagemagick
   

2. Resize all JPG images starting with PXL in a downloads folder to 30% of its original size

   cd ~/downloads
   convert PXL*.jpg -resize 30% PXL.jpg
   

3. Create a GIF of all JPG images starting with PXL in a folder

   convert -delay 100 -loop 0 PXL*.jpg wooden-house-construction.gif
   

Sources

1. ImageMagick Animation Basics