resize_gifs.sh

#!/bin/bash

# This script will find all *.gif in current directory
# and convert in to max height with aspect ratio and
# apply maximum optimization.
# ============================
# You need to install `gifsicle` first


# Create dir if not exists
if [ ! -d "$DIRECTORY" ]; then
    mkdir "./resize/"
fi

for f in `find . -name "*.gif"`
do
    filename="${f##*/}"
    dirn="${fspec%/*}"
    result_path="./resize/${filename}";

    # print current file name
    echo $f
    
    # do conversion
    gifsicle --resize-fit-height 60 -O3 -i $f > $result_path
done