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Merge 8d4cdca874 into 8c19d0b482

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Ross Smith II 2021-01-06 05:01:39 +08:00 committed by GitHub
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manuscript/chapter8.txt
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@ -33,12 +33,12 @@
| Parameter | What does it do? |
| --------- | ---------------- |
| `${VAR:OFFSET}` | Remove first `N` chars from variable.
| `${VAR:OFFSET:LENGTH}` | Get substring from `N` character to `N` character. <br> (`${VAR:10:10}`: Get sub-string from char `10` to char `20`)
| `${VAR:: OFFSET}` | Get first `N` chars from variable.
| `${VAR:: -OFFSET}` | Remove last `N` chars from variable.
| `${VAR: -OFFSET}` | Get last `N` chars from variable.
| `${VAR:OFFSET:-OFFSET}` | Cut first `N` chars and last `N` chars. | `bash 4.2+` |
| `${VAR:OFFSET}` | Remove first `OFFSET` chars from variable.
| `${VAR:OFFSET:LENGTH}` | Get substring from `OFFSET` character to `LENGTH` character. `OFFSET` is zero-based. <br> (`${VAR:10:10}`: Get sub-string from char `10` to char `20`)
| `${VAR:: OFFSET}` | Get first `OFFSET` chars from variable.
| `${VAR:: -OFFSET}` | Remove last `OFFSET` chars from variable.
| `${VAR: -OFFSET}` | Get last `OFFSET` chars from variable.
| `${VAR:OFFSET:-OFFSET2}` | Cut first `OFFSET` chars and last `OFFSET2` chars. | `bash 4.2+` |
## Case Modification