Code:

/*** Background Execution for Eggdrop** Written by Fosters@G0**** (c) Copyright 1998 Eden Developments**     All Rights Reserved**** Usage:****  bgexec filename command [args]**** Compile With:****  gcc bgexec.c -o bgexec*/#include <sys/types.h>#include <unistd.h>#include <stdio.h>#include <string.h>#include <stdlib.h>extern void bgexec(char *file, char *command);int main(int ac, char *av[]){        char buf[512];        int loop;        if(ac < 3)        {                fprintf(stderr, "Usage: %s filename command [args]\n", av[0]);                return(20);        }        /* Build string for system() */        for(loop = 2;loop < ac;loop++)        {                strcat(buf, av[loop]);                strcat(buf, " ");        }        bgexec(av[1], buf);        exit(0);}void bgexec(char *file, char *command){        char buf[1024], tmp[256], cbuf[512];        FILE *ip, *op;        if(fork() == 0)        {                tmpnam(tmp);                sprintf(buf, "%s >>%s 2>>%s", command, tmp, tmp);                system(buf);                if(ip = fopen(tmp, "r"))                {                        if(op = fopen(file, "w"))                        {                                while(fgets(cbuf, sizeof(cbuf), ip))                                {                                        fputs(cbuf, op);                                }                                fclose(op);                        }                        fclose(ip);                }                remove(tmp);        }        return;}