bash 如何在 linux-shell 中使用 `amp;` & `gt;` 命令？
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how to use `amp;` & `gt;` commands in linux-shell?
提问by user3523781
i downloaded a script from Internet.
when i run it, it stops because of &&command and says No command 'amp' found
我从互联网上下载了一个脚本。当我运行它时，它因为&&命令而停止并说No command 'amp' found
what is amp?
what is gt?
what does they do?
什么是amp？什么是gt？他们做什么？
回答by Brian Agnew
I suspect this has undergone an HTML entity translation. You want to reverse this e.g.
我怀疑这已经过 HTML 实体翻译。你想扭转这个，例如
& becomes &
and
和
> becomes >
So (for example)
所以（例如）
cd /dir && ls > filename
would become
会成为
cd /dir && ls > filename
回答by Oliver Matthews
&and >are html escape codes for &and >respectively.
&而>对于HTML转义码&和>分别。
Either you have downloaded a script that has been htmlized, or you've accidentally downloaded a webpage with the script on.
要么您下载了一个已被 html 化的脚本，要么您不小心下载了一个带有该脚本的网页。
Check the top line of the file. if it starts with something like #!/usr/bin/bashthen it's the former and you just need to reverse the changes. If it has something like a <html>tag as the start, then you've downloaded the webpage - go back to where you got it and look for something like a 'raw' link
检查文件的第一行。如果它以类似的内容开头，#!/usr/bin/bash则是前者，您只需要撤消更改即可。如果它有一个类似<html>标签的东西作为开始，那么你已经下载了网页 - 回到你得到它的地方并寻找类似“原始”链接的东西
回答by Ling Loeng
in other word, &is the character reference for "An ampersand". While gtis simply we call it as (greater than).
换句话说，&是“一个和号”的字符参考。虽然gt只是我们称之为（大于）。
