Cutting a string in C with specified character

Question

For example, I have a string"/home/george/file.c", I want to cut the string to be "file.c", so just get rid of all string before the last '/' character.

Answer 1

There's a function called basename that'll do just that. See man 3 basename on how to use it.

Answer 2

Here, it is possible to use strrchr from <string.h> header. Look at its documentation.

#include <string.h>

char *end = strrchr(string, '/') + 1;
char result[SIZE];

if (end != NULL)
    strcpy(result, end);

Answer 3

If you're using the string library, you can just get the length of the string, then start walking backwards until you hit your first '/' character. Then, take that index and use substring.

Answer 4

char *filename = strrchr(path, '/'); // this points `filename` at the final '/'
if (filename)                        // if that succeeded
   ++filename;                       //     we want the next character
else                                 // otherwise
     filename = path;                //     what's in path is all the file name.

Answer 5

You can use the basename() defined in the header file <libgen.h> . The prototype of basename() is char *basename(const char *fname);. It returns a pointer into the original file name where the basename starts.

In your case the code should be as follows,

char ch="/home/george/file.c"
char *ptr;
ptr=basename(ch);
printf("The file name is %s",ptr);