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| <h4 class="subsection">14.2.4 Simple Program to List a Directory</h4> |
| |
| <p>Here's a simple program that prints the names of the files in |
| the current working directory: |
| |
| <pre class="smallexample"> #include <stdio.h> |
| #include <sys/types.h> |
| #include <dirent.h> |
| |
| int |
| main (void) |
| { |
| DIR *dp; |
| struct dirent *ep; |
| |
| dp = opendir ("./"); |
| if (dp != NULL) |
| { |
| while (ep = readdir (dp)) |
| puts (ep->d_name); |
| (void) closedir (dp); |
| } |
| else |
| perror ("Couldn't open the directory"); |
| |
| return 0; |
| } |
| </pre> |
| <p>The order in which files appear in a directory tends to be fairly |
| random. A more useful program would sort the entries (perhaps by |
| alphabetizing them) before printing them; see |
| <a href="Scanning-Directory-Content.html#Scanning-Directory-Content">Scanning Directory Content</a>, and <a href="Array-Sort-Function.html#Array-Sort-Function">Array Sort Function</a>. |
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