Remove text file

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I’m having trouble removing a C text file. Soon after using the fclose() function, I use remove() indicating the name of the text file, but the file is not deleted (the remove() function is not returning 0); What might be going on?

c filing-cabinet

  • What is the value of Errno after the call to remove?

  • Paste here your code and its return.

  • Maybe perror() help you understand what happens: if (remove(filename)) perror(filename);

  • Try running the program as an administrator.

1 answer

3

André see if the code below offers some help.

Since I didn’t have the code you used to verify I made one and tested it here.

Remember what Lucas Henrique commented, make sure your user is allowed to do this removal, in the case below I created the file myself and deleted, if you are just reading an existing file maybe your user is not allowed to remove the file.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h> // inclui apenas para usar o sleep

int main(void) {
    FILE *fp;
    char * file_name;

    file_name = "testeremove";

    printf("Criando arquivo\n");

    fp = fopen(file_name, "w");
    if (fp == NULL)
    {
        printf("erro ao criar o arquivo para escrita\n");
    }
    else
    {
        printf("Colocando um conteudo no arquivo\n");

        fprintf(fp, "Colocando um conteudo qualquer");
        fclose(fp);

        sleep(10); // aguarda 10 segundos antes de apagar o arquivo, coloquei para você poder checar o arquivo criado
        int ret;
        ret = remove(file_name);
        printf("%d\n",ret);
    }

    return EXIT_SUCCESS;
}

I hope I’ve helped.

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