shell/hush_test/hush-vars/param_expand_default.tests

   1 # first try some invalid patterns (do in subshell due to parsing error)
   2 "$THIS_SH" -c 'echo ${-}'
   3 "$THIS_SH" -c 'echo ${:-}'
   4
   5 # now some funky ones
   6 echo _${#-} _${#:-}
   7
   8 # now some valid ones
   9 set --
  10 echo _$1 _${1-} _${1:-} _${1-word} _${1:-word}
  11
  12 set -- aaaa
  13 echo _$1 _${1-} _${1:-} _${1-word} _${1:-word}
  14
  15 unset f
  16 echo _$f _${f-} _${f:-} _${f-word} _${f:-word}
  17
  18 f=
  19 echo _$f _${f-} _${f:-} _${f-word} _${f:-word}
  20
  21 f=fff
  22 echo _$f _${f-} _${f:-} _${f-word} _${f:-word}