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  1. #!/bin/bash
  2. json='{"access_token":"kjdshfsd", "key2":"value"}' 
  3.  
  4. echo $json | grep -oP '(?<="access_token":")[^"]+(?=")'
Success #stdin #stdout 0.01s 5468KB
comments (?)
stdin 
Standard input is empty
stdout 
kjdshfsd
https://ideone.com/Z6sOBp
language:
Bash (bash 5.0.3)
created:
3 years ago
visibility:
secret

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