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  1. #!/bin/bash
  2. s="Text... f[3][2,3][4] ...text"
  3. sed -E 's/(f\[[0-9]*]\[[0-9]*,[0-9]*])\[([0-9]*)]/\1["string"][\2]/g' <<< "$s"
Success #stdin #stdout 0s 19632KB
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Standard input is empty
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Text... f[3][2,3]["string"][4] ...text
https://ideone.com/voBo5G
language:
Bash (bash 5.0.3)
created:
5 years ago
visibility:
secret

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