在从文件运行时，命令行中的同一bash脚本不工作 [英] the same bash script in command line doesn't work when run from a file

问题描述

我试图从cygwin中删除Bash脚本。当我在命令提示符中手动键入以下行时，一切正常，我看到从1到10的数字打印在屏幕上。

  for i in {1..10}; do 
 echo $ i;但是，如果我将脚本保存到一个文件（test.sh）中，并且将脚本保存到一个文件（test.sh）中，运行./test.sh，我看到以下错误
  ./ test.sh：line 1：syntax error接近意外的令牌`$'do \r''
'/test.sh：line 1：`for in in {1..10}; do 
  
这看起来很奇怪。 
 
 
 
谢谢你，
 Derek 
我想知道如何使用相同的脚本在命令行中运行而不是从文件运行。 div class =h2_lin>解决方案

\r 是一个提示。你的文件可能有CRLF（ \r\\\
）行结束，bash解释器不能正常处理。将编辑器设置更改为使用Unix风格（ \\\
）行尾，或运行 / usr / bin / dos2unix< file& code>在您的文件上重置行结束。

I am trying to lean Bash scripting from cygwin. When i manually type the following lines in command prompt, everything works and I see that the number from 1 to 10 are printed on the screen.

for i in {1..10}; do
    echo $i;
done

However, if I save the script into a file (test.sh) and run "./test.sh", I was shown the following errors

./test.sh: line 1: syntax error near unexpected token `$'do\r''
'/test.sh: line 1: `for i in {1..10}; do

This seems very strange to me. i am wondering how come the same script runs fine in command line but not from a file.

Thanks, Derek

解决方案

The \r is a hint. Your file probably has CRLF (\r\n) line endings, which the bash interpreter does not handle gracefully. Change your editor settings to use Unix-style (\n) line endings, or run /usr/bin/dos2unix <file> on your file to reset the line endings.

这篇关于在从文件运行时，命令行中的同一bash脚本不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！