File: multicall-busybox.md

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (39 lines) | stat: -rw-r--r-- 891 bytes parent folder | download | duplicates (67)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
See the documentation for [`Command::multicall`][crate::Command::multicall] for rationale.

This example omits every command except true and false,
which are the most trivial to implement,
```console
$ busybox true
? 0

$ busybox false
? 1

```
*Note: without the links setup, we can't demonstrate the multicall behavior*

But includes the `--install` option as an example of why it can be useful
for the main program to take arguments that aren't applet subcommands.
```console
$ busybox --install
? failed
...

```

Though users must pass something:
```console
$ busybox
? failed
Usage: busybox [OPTIONS] [APPLET]

APPLETS:
  true   does nothing successfully
  false  does nothing unsuccessfully
  help   Print this message or the help of the given subcommand(s)

Options:
      --install <install>  Install hardlinks for all subcommands in path
  -h, --help               Print help

```