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  1. require 'pathname'
  2.  
  3. Pathname('/proc/').children.group_by(&:ftype).each do |type, files|
  4. 	files.first(10).each_with_index do |file, index|
  5. 		lambda do |file, type|
  6. 			"%-30s%-10s" % [file, type]
  7. 	    end
  8. 	    .tap do |printer|
  9. 	    	puts printer.call "path", "type" if index.zero?
  10.  
  11.     		puts printer.call file, "%s (%s)" % [type, files.size]
  12. 	    end
  13. 	 end
  14.  
  15. 	 (files.size - 10).tap do |remain|
  16. 	 	if remain > 0
  17. 	 		puts "(another #{remain})\n\n"
  18. 	 	else
  19. 	 		puts
  20. 	 	end
  21. 	 end
  22. end
Success #stdin #stdout 0.01s 6608KB
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stdin
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Standard input is empty
stdout
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path                          type      
/proc/fb                      file (45) 
/proc/dma                     file (45) 
/proc/keys                    file (45) 
/proc/kmsg                    file (45) 
/proc/misc                    file (45) 
/proc/mtrr                    file (45) 
/proc/stat                    file (45) 
/proc/iomem                   file (45) 
/proc/kcore                   file (45) 
/proc/locks                   file (45) 
(another 35)

path                          type      
/proc/fs                      directory (9)
/proc/bus                     directory (9)
/proc/irq                     directory (9)
/proc/sys                     directory (9)
/proc/tty                     directory (9)
/proc/acpi                    directory (9)
/proc/driver                  directory (9)
/proc/sysvipc                 directory (9)
/proc/1506                    directory (9)

path                          type      
/proc/net                     link (4)  
/proc/mounts                  link (4)  
/proc/self                    link (4)  
/proc/thread-self             link (4)
https://ideone.com/8eX05Q
language:
Ruby (ruby 2.5.5)
created:
2 years ago
visibility:
secret

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