perl - 是否有 `perl` 本身的手册页？

Question

很难说出这里问的是什么。这个问题模棱两可、含糊不清、不完整、过于宽泛或言辞激烈，无法以目前的形式合理回答。如需帮助澄清此问题以便可以重新打开，visit the help center .




8年前关闭。




我想知道什么 perl -T方法。
man perl说:

PERL(1)                 Perl Programmers Reference Guide          PERL(1)

NAME
  perl - The Perl 5 language interpreter

SYNOPSIS
  perl [ -sTtuUWX ]      [ -hv ] [ -V[:configvar] ]
       [ -cw ] [ -d[t][:debugger] ] [ -D[number/list] ]
       [ -pna ] [ -Fpattern ] [ -l[octal] ] [ -0[octal/hexadecimal] ]
       [ -Idir ] [ -m[-]module ] [ -M[-]'module...' ] [ -f ]  [ -C [number/list] ]  [ -S ]
       [ -x[dir] ]      [ -i[extension] ]
       [ [-e|-E] 'command' ] [ -- ] [ programfile ] [ argument ]...

然后没有解释这些命令行参数。

我在哪里可以找到这些命令行参数的联机帮助页/perldoc？

Answer 1

看看perldoc perlrun (“如何执行 Perl 解释器”):

-T

forces "taint" checks to be turned on so you can test them. Ordinarily these checks are done only when running setuid or setgid. It's a good idea to turn them on explicitly for programs that run on behalf of someone else whom you might not necessarily trust, such as CGI programs or any internet servers you might write in Perl. See perlsec for details. For security reasons, this option must be seen by Perl quite early; usually this means it must appear early on the command line or in the #! line for systems which support that construct.