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etcdctl: Update README to clarify newline syntax in TXN #10513

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Mar 2, 2019
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etcdctl: Update README to clarify newline syntax in TXN #10513

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21 changes: 21 additions & 0 deletions etcdctl/README.md
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Expand Up @@ -329,6 +329,27 @@ put key2 "some extra key"
# OK
```

#### Remarks

When using multi-line values within a TXN command, newlines must be represented as `\n`. Literal newlines will cause parsing failures. This differs from other commands (such as PUT) where the shell will convert literal newlines for us. For example:

```bash
./etcdctl txn <<<'mod("key1") > "0"

put key1 "overwrote-key1"

put key1 "created-key1"
put key2 "this is\na multi-line\nvalue"

'

# FAILURE

# OK

# OK
```

### COMPACTION [options] \<revision\>

COMPACTION discards all etcd event history prior to a given revision. Since etcd uses a multiversion concurrency control
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