diff options
Diffstat (limited to 'scripts/var_expansion.bash')
| -rw-r--r-- | scripts/var_expansion.bash | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/scripts/var_expansion.bash b/scripts/var_expansion.bash index f1f5e52..2d9a28e 100644 --- a/scripts/var_expansion.bash +++ b/scripts/var_expansion.bash @@ -109,3 +109,21 @@ echo $# echo a{b,c}d echo a{a,bc}d{e,}f echo a{ab,cd}d{ef,gh} +foo= +unset bar +echo ${foo-abc} +foo= +unset bar +echo ${foo+abc} +foo= +unset bar +echo ${foo=abc} +foo= +unset bar +echo ${bar-abc} +foo= +unset bar +echo ${bar+abc} +foo= +unset bar +echo ${bar=abc} |