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  1. #!/bin/bash
  2.  
  3. function test_expansion() {
  4. 	echo "${@:1:$#-1}"
  5. }
  6.  
  7. test_expansion 1 2 3 4
  8. test_expansion 1 2 3
  9. test_expansion 1       # outputs an empty line
  10. test_expansion         # raises the error seen on stdout
Runtime error #stdin #stdout #stderr 0s 4236KB
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stdin
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Standard input is empty
stdout
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1 2 3
1 2
stderr
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./prog.sh: line 4: $#-1: substring expression < 0
https://ideone.com/HKcaNj
language:
Bash (bash 5.0.3)
created:
5 years ago
visibility:
public

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