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  1. #!/bin/bash
  2. # your code goes here
  3.  
  4. rc() {
  5.     return ${1:-1}
  6. }
  7.  
  8. false
  9. rc1=$?
  10.  
  11. true
  12. rc2=$?
  13.  
  14. if rc $rc1 ; then
  15.   echo false = true: $rc1
  16. else
  17.   echo false = false: $rc1
  18. fi
  19.  
  20. if rc $rc2 ; then
  21.   echo true = true: $rc2
  22. else
  23.   echo true = false: $rc2
  24. fi
  25.  
  26. if rc "" ; then
  27.   echo void = true
  28. else
  29.   echo void = false
  30. fi
  31.  
  32. if rc ; then
  33.   echo undef = true
  34. else
  35.   echo undef = false
  36. fi
Success #stdin #stdout 0s 5076KB
comments (?)
stdin
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Standard input is empty
stdout
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false = false: 1
true = true: 0
void = false
undef = false
https://ideone.com/Pk85y3
language:
Bash (bash 5.0.3)
created:
9 years ago
visibility:
public

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