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  1. #!/bin/bash
  2. s="TEST=bla
  3. TEST_2=blabla
  4. TEST=bla4"
  5. t="This is some fake config file. The value of test variable is %TEST%."
  6.  
  7. repl="$(sed -n 's/^TEST=\(.*\)/\1/p;q' <<< "$s")"
  8. sed "s|%TEST%|$repl|g" <<< "$t"
  9.  
  10. sed "s|%TEST%|$(sed -n 's/^TEST=\(.*\)/\1/p;q' <<< "$s")|g" <<< "$t"
Success #stdin #stdout 0s 4188KB
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This is some fake config file. The value of test variable is bla.
This is some fake config file. The value of test variable is bla.
https://ideone.com/RyZFtN
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
secret

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