# Description
This pr is going to add a new command named `help pipe-and-redirect`.
So user can detect such feature easier.
# User-Facing Changes
Here is the output of this command:
```
╭───┬────────┬──────────────────────────────────────┬──────────────────────────────────────────────────────────────┬─────────────────────╮
│ # │ symbol │ name │ description │ example │
├───┼────────┼──────────────────────────────────────┼──────────────────────────────────────────────────────────────┼─────────────────────┤
│ 0 │ | │ pipe │ pipeline stdout of a command to another command │ ^cmd1 | ^cmd2 │
│ 1 │ e>| │ stderr pipe │ pipeline stderr of a command to another command │ ^cmd1 e>| ^cmd2 │
│ 2 │ o+e>| │ stdout and stderr pipe │ pipeline stdout and stderr of a command to another command │ ^cmd1 o+e>| ^cmd2 │
│ 3 │ o> │ redirection │ redirect stdout of a command, overwriting a file │ ^cmd1 o> file.txt │
│ 4 │ e> │ stderr redirection │ redirect stderr of a command, overwriting a file │ ^cmd1 e> file.txt │
│ 5 │ o+e> │ stdout and stderr redirection │ redirect stdout and stderr of a command, overwriting a file │ ^cmd1 o+e> file.txt │
│ 6 │ o>> │ redirection append │ redirect stdout of a command, appending to a file │ ^cmd1 o> file.txt │
│ 7 │ e>> │ stderr redirection append │ redirect stderr of a command, appending to a file │ ^cmd1 e> file.txt │
│ 8 │ o+e>> │ stdout and stderr redirection append │ redirect stdout and stderr of a command, appending to a file │ ^cmd1 o+e> file.txt │
│ 9 │ o>| │ │ Unsupported, it's the same to `|`, use it instead │ │
├───┼────────┼──────────────────────────────────────┼──────────────────────────────────────────────────────────────┼─────────────────────┤
│ # │ symbol │ name │ description │ example │
╰───┴────────┴──────────────────────────────────────┴──────────────────────────────────────────────────────────────┴─────────────────────╯
```
# Tests + Formatting
# After Submitting
Should update more examples in [nushell
doc](https://www.nushell.sh/lang-guide/chapters/pipelines.html) to fill
more examples
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resolves#4869
# Description
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Adds a `help escape` command that can be used to display a table of
string escape sequences and their outputs.
```nu
help escapes
```
```nu
help escapes -h
```
The command should also appear in the list displayed when tab
autocompleting on `help`.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Users can now use a new `help escapes` command to output a table of
string escape sequences and their outputs.
# Tests + Formatting
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# After Submitting
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Need to update docs to reflect existence of the new `help escapes`
command.
# Description
Make sure that our different crates that contain commands can be
compiled in parallel.
This can under certain circumstances accelerate the compilation with
sufficient multithreading available.
## Details
- Move `help` commands from `nu-cmd-lang` back to `nu-command`
- This also makes sense as the commands are implemented in an
ANSI-terminal specific way
- Make `nu-cmd-lang` only a dev dependency for `nu-command`
- Change context creation helpers for `nu-cmd-extra` and
`nu-cmd-dataframe` to have a consistent api used in
`src/main.rs`:`get_engine_state()`
- `nu-command` now indepedent from `nu-cmd-extra` and `nu-cmd-dataframe`
that are now dependencies of `nu` directly. (change to internal
features)
- Fix tests that previously used `nu-command::create_default_context()`
with replacement functions
## From scratch compilation times:
just debug (dev) build and default features
```
cargo clean --profile dev && cargo build --timings
```
### before
### after
# User-Facing Changes
None direct, only change to compilation on multithreaded jobs expected.
# Tests + Formatting
Tests that previously chose to use `nu-command` for their scope will
still use `nu-cmd-lang` + `nu-command` (command list in the granularity
at the time)
