为什么我得到“无法找到字符串终结符”“”在EOF之前的任何地方在-e线1“当我试图在Windows上运行Perl一线程？ [英] Why am I getting "Can't find string terminator "'" anywhere before EOF at -e line 1" when I try to run a Perl one-liner on Windows?

问题描述

我试图在Windows上运行以下5.14.2

I am trying to run the following on Windows with 5.14.2

C:\Perl>perl -e 'print "Hello World \n"'
Can't find string terminator "'" anywhere before EOF at -e line 1.

我缺少什么？ p>

What am I missing?

推荐答案

你失去一个体面的外壳与完美定义的引用规则。在Windows上，只有双引号被视为引号，转义规则定义不完整和不一致。尝试：

You're missing a decent shell with sane and well-defined quoting rules. On Windows, only the double quote is considered a quote, and the escaping rules are poorly defined and inconsistent. Try:

perl -e "print qq{Hello World \n}"

我强烈建议避免任何东西，但在Windows上最简单的一行。 （Windows的另一个问题是Windows shell不扩展通配符，如果在命令行中使用 *。txt ，它会查找一个文件

I strongly recommend avoiding anything but the very simplest one-liners on Windows. (Another problem with Windows one-liners is that the Windows shell doesn't expand wildcards. If you use *.txt on the command line, it'll look for a file named literally *.txt. You'll run into that later.)

在Windows上，输入的内容是： * .txt 等于：

On Windows, what you typed is equivalent to:

perl -e "'print" "Hello World \n'"

也就是说，Perl尝试执行的代码是'print 包含单个字符串 Hello World \\\
'的c $ c> @ARGV 。 （这不是换行符，反斜杠后面跟 n ）。

That is, the code Perl is trying to execute is 'print with @ARGV containing the single string Hello World \n'. (That's not a newline, that's a backslash followed by n).

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