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.

[Split the string](http://stackoverflow.com/q/9210528/102937) on `/`, and take the last element in the split. — Robert Harvey, May 30 '13 at 17:37
Are you looking for something like [this](http://stackoverflow.com/questions/1575278/function-to-split-a-filepath-into-path-and-file)? — A4L, May 30 '13 at 17:39

score 5 · Answer 1 · answered May 30 '13 at 17:38

5

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

answered May 30 '13 at 17:38

eduffy

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Note that `basename` is not part of the c standard library, though it is very widely available. The man page on my mac claims *"The basename() function conforms to X/Open Portability Guide Issue 4, Version 2 (``XPG4.2'')."* – dmckee --- ex-moderator kitten May 30 '13 at 18:27

md5 · Answer 2 · 2013-05-30T17:55:29.930

1

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);

edited May 30 '13 at 17:55

answered May 30 '13 at 17:38

md5

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score 0 · Answer 3 · answered May 30 '13 at 17:38

0

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.

answered May 30 '13 at 17:38

Magn3s1um

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score 0 · Answer 4 · answered May 30 '13 at 17:38

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.

score 0 · Answer 5 · answered May 30 '13 at 17:55

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);

Cutting a string in C with specified character

5 Answers5