英文:
How to get meaningful help pages for aws CLI subcommands like `aws s3 cp`?
问题
我正在尝试查找aws s3 cp CLI命令的选项，但以下两种方式都不起作用。
当我使用--help或-h时，我得到以下无用的CLI输出，没有提到s3，更不用说s3 cp子命令了：
$ aws s3 cp --help
用法: aws [-h] [--profile PROFILE] [--debug]
选项:
-h, --help 显示此帮助消息并退出
--profile PROFILE
--debug
我也找不到使用man aws，man aws-s3或man aws-s3-cp来查找手册页面。
我知道我可以在网上找到文档：https://awscli.amazonaws.com/v2/documentation/api/latest/reference/s3/cp.html，但我如何在终端中直接获取类似的信息呢？
英文:
I'm trying to figure out what options there are for the aws s3 cp CLI command but neither of the following work.
When I use --help or -h I get the following useless CLI output that doesn't say anything about s3, let alone s3 cp subcommands:
$ aws s3 cp --help
usage: aws [-h] [--profile PROFILE] [--debug]
options:
-h, --help show this help message and exit
--profile PROFILE
--debug
Neither can I find man pages using man aws, man aws-s3 or man aws-s3-cp.
I know I can find the docs online: https://awscli.amazonaws.com/v2/documentation/api/latest/reference/s3/cp.html but how do I get similar information directly in my terminal?
答案1
得分: 3
非直观的答案是在不使用--的情况下键入help。当您键入以下命令时：
aws s3 cp help
您将获得适当的手册页以在分页器中打开：
CP() CP()
NAME
cp -
DESCRIPTION
Copies a local file or S3 object to another location locally or in S3.
SYNOPSIS
cp
<LocalPath> <S3Uri> or <S3Uri> <LocalPath> or <S3Uri> <S3Uri>
[--dryrun]
[--quiet]
[--include <value>]
[--exclude <value>]
...
我不太理解为什么AWS决定不接受几乎普遍标准的子命令-h。也许有人可以在评论中给我一些启发。
添加help 在任何地方都有效，甚至在原始的aws上也可以，比如aws help，这将再次打开一个手册页。奇怪的是，当使用-h 传递时，不会列出这个help 选项。
英文:
The unintuitive answer is to type help without the --. When you type:
aws s3 cp help
you get the appropriate man page to open in a pager:
CP() CP()
NAME
cp -
DESCRIPTION
Copies a local file or S3 object to another location locally or in S3.
SYNOPSIS
cp
<LocalPath> <S3Uri> or <S3Uri> <LocalPath> or <S3Uri> <S3Uri>
[--dryrun]
[--quiet]
[--include <value>]
[--exclude <value>]
...
I don't quite understand why aws decided to not accept the nearly universal standard -h for subcommands. Maybe someone can enlighten me in the comments.
Adding help works everywhere, even on a raw aws as aws help which again opens a manpage. Strange that this help addition is not listed when passing -h.
答案2
得分: 1
尝试：aws s3 cp help
即从 --help 中删除破折号。
英文:
Try: aws s3 cp help
i.e. removing the dashes from --help
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