Open Directories and Read File Names

<< Perl Tutorials - Herong's Tutorial Examples

This chapter provides tutorial examples and notes about opening directories. Topics include using opendir() to open a directory handle for a given path name; using readdir() to read file names and sub directory names; using recursive methods to process all files of a directory tree.

opendir() - Open Directory to Read File Names

opendir.pl - Sample Program to Read Directories

DirTree.pl - Displaying the Directory Tree

DirGrep.pl - Searching Text in Directory Files

Conclusions:

• opendir(DIR, $path) - Opening a directory handle to a directory path.
• readdir(DIR) - Reading one entry or all entries from directory handle.
• A recursive method is needed to process all entries of a directory tree.
• DirGrep.pl pattern path - A good sample program to search for text in a directory tree.