#

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# = un.rb

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#

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# Copyright (c) 2003 WATANABE Hirofumi <eban@ruby-lang.org>

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#

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# This program is free software.

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# You can distribute/modify this program under the same terms of Ruby.

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#

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# == Utilities to replace common UNIX commands in Makefiles etc

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#

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# == SYNOPSIS

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#

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# ruby -run -e cp -- [OPTION] SOURCE DEST

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# ruby -run -e ln -- [OPTION] TARGET LINK_NAME

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# ruby -run -e mv -- [OPTION] SOURCE DEST

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# ruby -run -e rm -- [OPTION] FILE

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# ruby -run -e mkdir -- [OPTION] DIRS

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# ruby -run -e rmdir -- [OPTION] DIRS

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# ruby -run -e install -- [OPTION] SOURCE DEST

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# ruby -run -e chmod -- [OPTION] OCTAL-MODE FILE

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# ruby -run -e touch -- [OPTION] FILE

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# ruby -run -e help [COMMAND]

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require "fileutils"

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require "optparse"

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module FileUtils

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# @fileutils_label = ""

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@fileutils_output = $stdout

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end

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def setup(options = "")

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ARGV.map! do |x|

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case x

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when /^-/

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x.delete "^-#{options}v"

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when /[*?\[{]/

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Dir[x]

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else

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x

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end

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end

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ARGV.flatten!

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ARGV.delete_if{|x| x == "-"}

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opt_hash = {}

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OptionParser.new do |o|

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options.scan(/.:?/) do |s|

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o.on("-" + s.tr(":", " ")) do |val|

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opt_hash[s.delete(":").intern] = val

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end

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end

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o.on("-v") do opt_hash[:verbose] = true end

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o.parse!

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end

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yield ARGV, opt_hash

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end

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##

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# Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY

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#

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# ruby -run -e cp -- [OPTION] SOURCE DEST

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#

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# -p preserve file attributes if possible

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# -r copy recursively

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# -v verbose

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#

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def cp

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setup("pr") do |argv, options|

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cmd = "cp"

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cmd += "_r" if options.delete :r

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options[:preserve] = true if options.delete :p

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dest = argv.pop

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argv = argv[0] if argv.size == 1

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FileUtils.send cmd, argv, dest, options

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end

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end

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##

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# Create a link to the specified TARGET with LINK_NAME.

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#

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# ruby -run -e ln -- [OPTION] TARGET LINK_NAME

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#

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# -s make symbolic links instead of hard links

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# -f remove existing destination files

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# -v verbose

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#

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def ln

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setup("sf") do |argv, options|

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cmd = "ln"

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cmd += "_s" if options.delete :s

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options[:force] = true if options.delete :f

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dest = argv.pop

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argv = argv[0] if argv.size == 1

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FileUtils.send cmd, argv, dest, options

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end

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end

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##

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# Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.

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#

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# ruby -run -e mv -- [OPTION] SOURCE DEST

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#

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# -v verbose

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#

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def mv

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setup do |argv, options|

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dest = argv.pop

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argv = argv[0] if argv.size == 1

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FileUtils.mv argv, dest, options

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end

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end

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##

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# Remove the FILE

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#

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# ruby -run -e rm -- [OPTION] FILE

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#

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# -f ignore nonexistent files

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# -r remove the contents of directories recursively

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# -v verbose

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#

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def rm

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setup("fr") do |argv, options|

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cmd = "rm"

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cmd += "_r" if options.delete :r

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options[:force] = true if options.delete :f

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FileUtils.send cmd, argv, options

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end

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end

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##

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# Create the DIR, if they do not already exist.

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#

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# ruby -run -e mkdir -- [OPTION] DIR

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#

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# -p no error if existing, make parent directories as needed

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# -v verbose

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#

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def mkdir

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setup("p") do |argv, options|

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cmd = "mkdir"

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cmd += "_p" if options.delete :p

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FileUtils.send cmd, argv, options

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end

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end

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##

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# Remove the DIR.

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#

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# ruby -run -e rmdir -- [OPTION] DIR

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#

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# -v verbose

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#

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def rmdir

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setup do |argv, options|

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FileUtils.rmdir argv, options

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end

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end

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##

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# Copy SOURCE to DEST.

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#

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# ruby -run -e install -- [OPTION] SOURCE DEST

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#

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# -p apply access/modification times of SOURCE files to

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# corresponding destination files

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# -m set permission mode (as in chmod), instead of 0755

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# -v verbose

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#

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def install

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setup("pm:") do |argv, options|

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options[:mode] = (mode = options.delete :m) ? mode.oct : 0755

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options[:preserve] = true if options.delete :p

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dest = argv.pop

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argv = argv[0] if argv.size == 1

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FileUtils.install argv, dest, options

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end

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end

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##

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# Change the mode of each FILE to OCTAL-MODE.

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#

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# ruby -run -e chmod -- [OPTION] OCTAL-MODE FILE

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#

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# -v verbose

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#

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def chmod

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setup do |argv, options|

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mode = argv.shift.oct

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FileUtils.chmod mode, argv, options

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end

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end

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##

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# Update the access and modification times of each FILE to the current time.

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#

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# ruby -run -e touch -- [OPTION] FILE

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#

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# -v verbose

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#

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def touch

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setup do |argv, options|

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FileUtils.touch argv, options

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end

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end

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##

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# Display help message.

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#

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# ruby -run -e help [COMMAND]

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#

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def help

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setup do |argv,|

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all = argv.empty?

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open(__FILE__) do |me|

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while me.gets("##\n")

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if help = me.gets("\n\n")

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if all or argv.delete help[/-e \w+/].sub(/-e /, "")

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print help.gsub(/^# ?/, "")

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end

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end

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end

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end

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end

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end

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