https://github.com/richmit/linesets

Set theoretical operations with the lines of files
https://github.com/richmit/linesets

Last synced: about 2 months ago
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Set theoretical operations with the lines of files

• Host: GitHub
• URL: https://github.com/richmit/linesets
• Owner: richmit
• Created: 2022-12-09T05:26:17.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2022-12-09T05:31:06.000Z (about 2 years ago)
• Last Synced: 2023-11-18T15:25:23.580Z (about 1 year ago)
• Language: Ruby
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.org

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README

        
Set theoretical file comparison and manipulation

I frequently want to do set theory things with the lines in a

file. For example, I might have a set of files each containing a list

of installed packages on a machine, and I want to know things: 1) what

packages are installed on all systems (set intersection), 2) what is

the list of all installed packages (set union), 3) what packages are

only installed on machine A (set difference), 4) etc… These tools

facilitate such computations (see the script documentation for more

examples).

 - =lineSetOp.rb= ::

   A ruby script that can do many different kinds of set theory

   computations. Each "set" is defined by a file with the set

   elements being each line of the file. 

 - =lineMapDiff.rb= ::

   A ruby script similar to =lineSetOp.rb= but it operates on maps

   (ordered pairs) instead of sets, and only preforms a kind of set

   difference.

 - =uniq.rb= :: 

   A "stable" version of the UNIX command =uniq= that doesn't require

   a file to be sorted to work.  It spits out the first occurrence of

   each line.