Extract the file name without its extension

Hello,
maybe by taking everything before the last point?

And how do we do that in C?

I don't know which function to choose; there are really a lot of them and many I don't know.
Can you tell me which one it is, please?

Hello,

Why would you want to do this in C if, apparently like me, you don't understand anything about it?

In batch, it's simple:
https://forums.commentcamarche.net/forum/affich-14163549-batch-lister-noms-de-ficheirs-sans-extensio

I know how to do it in bash, but in my exercise, I'm asked to do it in C.

If someone knows how to do it, I'm taking
For example, memccpy can do pretty much what I want but it will include the . whereas I don't want a point.

In fact, by looking at this code:

 #include <stdio.h> #include <string.h> #include <stdlib.h> char* msg = "This is the string: not copied"; int main( void ) { char buffer[80]; memset( buffer, '\0', 80 ); memccpy( buffer, msg, ':', 80 ); printf( "%s\n", buffer ); return EXIT_SUCCESS; } 

It returns this is the string:

I don't know in this code, it's as if we put a ‘\0’ at the end of the buffer, otherwise I don't see the utility of doing memset(…).

The end of the buffer is the null-terminating character '\0'

Ah ok, I see, I understand better

So, actually
For example, if I have
char fichier [10]= "operations.txt"
fichier sans extension=operations
Char fichier_sans_extension[10];

To do this, I do memccpy(fichier_sans_extension,fichier, '.' ,10)
puts(fichier_sans_extension)
Normally, this gives me operations.

How can I ignore the .?

Thank you, I understand. Thank you for your help.

Actually, I need to create a program to replace .txt files with .as files.

Actually, I wrote this code but it does not work and I don't understand why

 #include <stdio.h> #include <string.h> int main(){ char fichier[]="operations.txt"; char dest[50]; char fichier_sans_extension[50]; int i=0; while(fichier[i]!='\0'){ if(fichier[i]=='.'){ memccpy(fichier_sans_extension,fichier,fichier[i-1],strlen(fichier)); puts(fichier_sans_extension); } i++; } } 

Do you know what is wrong with my code?

I

Actually, earlier it displayed
operations��U
operations6�wU
operationsX�
.....

It's weird that it shows me stuff like that

Actually, I wanted memccpy to return operations

o p ....s .
0 1 9 10

If I use memccpy like before, it returns operations/

I wanted my program to find the index where the dot is, which is i=9

And by doing fichier[i-1], it allows me to stop at s

And doing like before except I replace '.' with fichier[i-1]

Normally it shouldn't make any difference since memccpy will stop at the character before the dot.

And what should I change in my code for it to work?

I understand what was wrong, thank you.