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Document shell expanded string defaults (#2153)

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Casey Rodarmor 2024-06-13 14:41:19 -07:00 committed by GitHub
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@ -1314,6 +1314,7 @@ foobar := x'~/$FOO/${BAR}'
|------|-------------|
| `$VAR` | value of environment variable `VAR` |
| `${VAR}` | value of environment variable `VAR` |
| `${VAR:-DEFAULT}` | value of environment variable `VAR`, or `DEFAULT` if `VAR` is not set |
| Leading `~` | path to current user's home directory |
| Leading `~USER` | path to `USER`'s home directory |