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Updated SC2176 (markdown)

Vidar Holen
2018-07-26 11:07:56 -07:00
parent 53c8c0d458
commit 669921864f
1 changed files with 4 additions and 3 deletions
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SC2176.md

@@ -3,7 +3,8 @@
### Problematic code: ### Problematic code:
```sh ```sh
time foo | bar``` time foo | bar
```
### Correct code: ### Correct code:
@@ -19,7 +20,7 @@ To time everything in a pipeline:
time bash -c 'foo | bar' time bash -c 'foo | bar'
``` ```
Note that you can not `time sh -c` to time an entire pipeline, because POSIX does not guarantee that anything other than the last stage is waited on and therefore be recursively counted in the `times()` call that `time` depends on. Note that you can not use `time sh -c` to time an entire pipeline, because POSIX does not guarantee that anything other than the last stage is waited upon by the shell.
### Rationale: ### Rationale:
@@ -27,4 +28,4 @@ This behavior is explicitly left undefined [in POSIX](http://pubs.opengroup.org/
### Exceptions: ### Exceptions:
None. This method is not given in `ksh` or `bash` where `time` is defined for pipelines. None. This warning is not emitted in `ksh` or `bash` where `time` is defined for pipelines.