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cleanup of language

This commit is contained in:
Dylan Araps 2018-06-20 22:08:15 +10:00
parent f6fd6e5e81
commit f52d442128
1 changed files with 4 additions and 4 deletions
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8
manuscript/chapter8.txt
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@ -54,12 +54,12 @@
| Parameter | What does it do? |
| --------- | ---------------- |
| `${VAR:-STRING}` | If `VAR` is empty or unset, use `STRING` as it's value.
| `${VAR-STRING}` | If `VAR` is unset, use `STRING` as it's value.
| `${VAR:-STRING}` | If `VAR` is empty or unset, use `STRING` as its value.
| `${VAR-STRING}` | If `VAR` is unset, use `STRING` as its value.
| `${VAR:=STRING}` | If `VAR` is empty or unset, set the value of `VAR` to `STRING`.
| `${VAR=STRING}` | If `VAR` is unset, set the value of `VAR` to `STRING`.
| `${VAR:+STRING}` | If `VAR` is not empty, use `STRING` as it's value.
| `${VAR+STRING}` | If `VAR` is set, use `STRING` as it's value.
| `${VAR:+STRING}` | If `VAR` is not empty, use `STRING` as its value.
| `${VAR+STRING}` | If `VAR` is set, use `STRING` as its value.
| `${VAR:?STRING}` | Display an error if empty or unset.
| `${VAR?STRING}` | Display an error if unset.