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ruby script #3

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ruby script #3

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22 changes: 22 additions & 0 deletions shell.rb
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# array for base filenames
base_names = []

# change into image directory
Dir.chdir("image_batch")

# collect all base filenames
Dir["*.png"].map{|file| base_names << file.split('.').first}

# using system call
# 'magick' here is a version 7+ option, previous versions would be just 'convert'
base_names.map {|file| system("magick convert #{file}.png #{file}.jpg")}

# option: using mini_magick
#base_names.each do |file|
#image = MiniMagick::Image.open("#{file}")
#image.format "jpg"
#image.write("#{file.split('.').first}.jpg")
#end

# list all of the files in the image directory
Dir["*"].map{|file| puts file}