fork(3) download 
  1. abc = "test = > @ Stack overflow"
  2. puts abc.gsub(/\s*([^\s\p{L}\p{N}])\s*/, "\\1")
Success #stdin #stdout 0.05s 9768KB
comments (?)
stdin 
Standard input is empty
stdout 
test=>@Stack overflow
https://ideone.com/PQ8c6M
language:
Ruby (ruby 2.5.5)
created:
8 years ago
visibility:
secret

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