如何使用perl进入目录? [英] How do I cd into a directory using perl?

问题描述

我正在尝试以下方法. 系统"cd directoryfolder" 但是失败了，我也尝试系统退出"离开终端，但是失败了.

I am trying the following.. system "cd directoryfolder" but it fails, also I try system "exit" to leave the terminal but it fails.

推荐答案

代码:

chdir('path/to/dir') or die "$!";

Perldoc:

   chdir EXPR
   chdir FILEHANDLE
   chdir DIRHANDLE
   chdir   Changes the working directory to EXPR, if possible. If EXPR is omitted,
           changes to the directory specified by $ENV{HOME}, if set; if not, changes to
           the directory specified by $ENV{LOGDIR}. (Under VMS, the variable
           $ENV{SYS$LOGIN} is also checked, and used if it is set.) If neither is set,
           "chdir" does nothing. It returns true upon success, false otherwise. See the
           example under "die".

           On systems that support fchdir, you might pass a file handle or directory
           handle as argument.  On systems that don't support fchdir, passing handles
           produces a fatal error at run time.

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