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  1. #!/bin/bash
  2. # your code goes here
  3. echo "It is a @ at a@ ." | sed "s/\ba@\B/#/g"
Success #stdin #stdout 0s 5072KB
comments (?)
stdin 
Standard input is empty
stdout 
It is a @ at # .
https://ideone.com/OMJkYa
language:
Bash (bash 5.0.3)
created:
10 years ago
visibility:
public

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