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  1. #!/bin/bash
  2. s='I wish them a Merry Christmas'
  3. find='e'
  4. replace='E'
  5. tr "$find" "$replace" <<< "$s"
  6. awk -v f="$find" -v r="$replace" '{gsub(f, r)}1' <<< "$s"
  7. sed 'y/e/E/' <<< "$s"
  8.  
Success #stdin #stdout 0.01s 5540KB
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stdin
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Standard input is empty
stdout
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I wish thEm a MErry Christmas
I wish thEm a MErry Christmas
I wish thEm a MErry Christmas
https://ideone.com/lHXTm0
language:
Bash (bash 5.0.3)
created:
4 years ago
visibility:
secret

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