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  1. #!/bin/bash
  2. s=' 00018342 0000 dc.b 11010101b'
  3. sed 's/\b\([01]\+\)b\b/%\1/g' <<< "$s"
  4.  
Success #stdin #stdout 0.01s 5268KB
stdin
Standard input is empty
stdout
  00018342 0000           dc.b   %11010101