linux - 我如何使用 perl cd 进入一个目录？

Question

我正在尝试以下.. 系统“cd目录文件夹” 但它失败了，我也尝试系统“退出”离开终端，但它失败了。

Answer 1

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.