Ubuntu Bash 无法理解 Bash 脚本
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/8648094/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Bash script not understood by Ubuntu Bash
提问by Houman
I am new to Bash Script. I run the following simple script in Ubuntu like this:
我是 Bash 脚本的新手。我在 Ubuntu 中运行以下简单脚本，如下所示：
sudo bash -x Script.sh
Output:
输出：
+ $'\r'
: command not found
+ $'\r'
: command not found
+ $'\r'
: command not found
+ adminEmail=$'[email protected]\r'
+ $'\r'
: command not found
' echo 'database name:
database name:
+ read $'dbname\r'
The actual script:
实际脚本：
#!/bin/bash
# Installation script for latest Wordpress website on Ubuntu
#
# Kave
# December 27, 2011
adminEmail="[email protected]"
echo "database name:"
read dbname
What are all these '\r'error messages coming up? Even the comments seem not to be understood...
出现的所有这些'\r'错误消息是什么？连评论都看不懂。。。
采纳答案by Jonathan Leffler
You downloaded the file via a Windows machine, and you have CRLF line endings (that's \r\nin C and related languages).
您通过 Windows 机器下载了该文件，并且您有 CRLF 行结尾（使用\r\nC 和相关语言）。
Remove the DOS line endings. For example, edit the file in vimand change the format with :set fileformat=unix(plus Return) and then write the file back out. Alternative techniques could use the trcommand, or dos2unixor dtou, depending on what's available.
删除 DOS 行尾。例如，编辑文件vim并使用:set fileformat=unix(plus Return)更改格式，然后将文件写回。替代技术可以使用tr命令或dos2unix或dtou，这取决于可用的内容。
回答by jaypal singh
Simply do
简单地做
dos2unix scriptname
and execute your script.
并执行您的脚本。
If you don't have the tool you can do the following to install it.
如果您没有该工具，您可以执行以下操作来安装它。
sudo apt-get install dos2unix
OR
或者
Do the following command line hacks to convert the file.
执行以下命令行技巧来转换文件。
tr -d '5' < scriptname > scriptname.new
OR
或者
sed -i 's/\x0D$//' scriptname
回答by Nanne
Cut and paste your code from this page into an editor on your Ubuntu, so you'll get your line-endings fixed (\r\non windows vs \non Linux for instance)
将此页面中的代码剪切并粘贴到 Ubuntu 上的编辑器中，这样您就可以修复行尾（例如\r\n在 Windows 上与\nLinux 上）
If you save it as a new file I'm sure it'll work fine.
如果您将其另存为新文件，我相信它会正常工作。
回答by eclipse
Sounds like there are some extraneous non-printable characters in the file.
Open the file in Vi/Vim:
press [ESC]to get into command mode
then type :set list
听起来文件中有一些无关的不可打印字符。
在 Vi/Vim 中打开文件：
按[ESC]进入命令模式
然后键入:set list
