Convert all EPS files in a directory to PDF

eps2pdf.sh

#!/usr/bin/env bash

case "$1" in
    "-h" | "--help")
        echo "Usage: eps2pdf [directory]"
        echo ""
        echo "Convert all EPS files in a specified directory to PDF."
        echo "If no directory is specified, assume the current working directory."
        echo ""
        exit 0
        ;;
esac

if [ $# -eq 0 ]; then
    dir=$(pwd)
else
    dir=$1
fi

if [ ! -d "$dir" ]; then
    echo "Directory \"$dir\" does not exist."
    exit 1
fi

for file in "$dir"/*.eps; do
    epstopdf "$file"
done