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#!/usr/bin/ruby
#
# See ../README.md
#
#
# Run as: ruby ch-1.rb < input-file
#
ARGF . each_line do
| line |
parts = line . strip() . split (/\/+/)
parts2 = []
parts . each do
| part |
if part == "" or part == "." # Skip empty parts and current directory
next
end
if part == ".." # Remove parent directory
parts2 . pop
next
end
parts2 . push (part) # Add part
end
puts ("/" + parts2 . join("/")) # Print result
end
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