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taichiman/gist:a5251824050989c6bec7

Last active November 17, 2015 11:26
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cheetsheets
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ruby MAIN FLOW:

def do_at_exit(str1)
at_exit { print str1 }
end
at_exit { puts "cruel world" }
do_at_exit("goodbye ")
exit

@taichiman
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File:

Dir

entries

foreach dir

FileUtils

copy_entry

copy_file

copy_stream

cp, copy

@taichiman
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CLI Options:

http://ruby-doc.org/stdlib-2.2.0/libdoc/getoptlong/rdoc/GetoptLong.html
The GetoptLong class allows you to parse command line options similarly to the GNU getopt_long() C library call.

http://ruby-doc.org/stdlib-2.2.0/libdoc/optparse/rdoc/OptParse.html
OptionParser is a class for command-line option analysis. It is much more advanced, yet also easier to use, than GetoptLong, and is a more Ruby-oriented solution.

https://github.com/leejarvis/slop

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