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- operators - What does =~ do in Perl? - Stack Overflow
51 I guess the tag is a variable, and it is checking for 9eaf - but does this exist in Perl? What is the "=~" sign doing here and what are the " " characters before and after 9eaf doing?
- What is the meaning of @_ in Perl? - Stack Overflow
128 perldoc perlvar is the first place to check for any special-named Perl variable info Quoting: @_: Within a subroutine the array @_ contains the parameters passed to that subroutine More details can be found in perldoc perlsub (Perl subroutines) linked from the perlvar: Any arguments passed in show up in the array @_
- operators - What is the difference between || and or in Perl . . .
53 From Perl documentation: OR List operators On the right side of a list operator, it has very low precedence, such that it controls all comma-separated expressions found there
- Whats the use of lt; gt; in Perl? - Stack Overflow
@pst, <> is not a file handle, "null" or otherwise It's an operator Specifically, the readline operator There's a reference to it as the "angle operator" in perlvar, although there isn't actually any such operator The angle brackets are used by two operators: readline or glob The operator depends on the contents of the brackets
- How can I parse command-line arguments in a Perl program?
I'm working on a Perl script How can I parse command line parameters given to it? Example: script pl "string1" "string2"
- regex - What is ^ and i in Perl? - Stack Overflow
The match operator is the syntax that tells the Perl interpreter: here comes a regex In Perl, the match operator is normally delimited by ' ' at start and end, but you can use delimiters (e g , m{^foo})
- [办公编程]Python不算啥，我已经有更好的选择——Perl (一文快速入门，附详细举例)
2 1 Perl变量 要赋值，就要先了解Perl的变量，当我了解这部分的时候挺惊讶于变量的设计思路，Perl所有数字的内部变量都是双精度浮点数（double-precision floating-point）有过其他编程语言背景的同学应该明白了，数字全部都是double 跑内存运算，没有整型这个类型。
- operators - What does =~ mean in Perl? - Stack Overflow
Possible Duplicate: What does =~ do in Perl? In a Perl program I am examining (namly plutil pl), I see a lot of =~ on the XML parser portion For example, here is UnfixXMLString (lines 159 to 167
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