Category Archives: File

C program to list all files in a directory recursively

Write a C program to list all files in a directory. How to list all files in a directory recursively. How to use readdir() function to list all files in a directory recursively. Logic to list all files and sub-directories of a directory in C programming. How to use opendir(), readdir() and closedir() library functions.

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C program to convert uppercase to lowercase and vice versa in file

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Write a C program to convert uppercase to lowercase and vice versa in file. How to convert uppercase characters to lowercase and vice versa in a file in C programming. Logic to convert uppercase characters to lowercase and vice versa in C program.

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