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ompile the program using $ gcc -o mycat filecopy.c mycat.c /* filecopy: copy file ifp to file ofp */ #include void filecopy(FILE *ifp, FILE *ofp) {     int c;       while ((c = getc(ifp)) != EOF)      putc(c,ofp); } #include /* mycat: concatenate files */    void filecopy(FILE *, FILE *);   int main(int argc, char *argv[]){   FILE *fp;   if (argc == 1){ /* no args, copy standard input */        filecopy(stdin, stdout);     }else{      while (--argc > 0){          if ((fp = fopen(*++argv, "r")) == NULL)          {             printf("cat: cannot open %s\n", *argv);                     return 1;                } else {                   filecopy(fp, stdout);               fclose(fp);          }        }   }      return 0; }

ompile the program using $ gcc -o mycat filecopy.c mycat.c /* filecopy: copy file ifp to file ofp */ #include void filecopy(FILE *ifp, FILE *ofp) {     int c;       while ((c = getc(ifp)) != EOF)      putc(c,ofp); } #include /* mycat: concatenate files */    void filecopy(FILE *, FILE *);   int main(int argc, char *argv[]){   FILE *fp;   if (argc == 1){ /* no args, copy standard input */        filecopy(stdin, stdout);     }else{      while (--argc > 0){          if ((fp = fopen(*++argv, "r")) == NULL)          {             printf("cat: cannot open %s\n", *argv);                     return 1;                } else {                   filecopy(fp, stdout);               fclose(fp);          }        }   }      return 0; }

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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  • Compile the program using $ gcc -o mycat filecopy.c mycat.c

    /* filecopy: copy file ifp to file ofp */

    #include <stdio.h>

    void filecopy(FILE *ifp, FILE *ofp)

    { 

       int c;   

       while ((c = getc(ifp)) != EOF)

         putc(c,ofp);

    }

    #include <stdio.h> /* mycat: concatenate files */ 

     

    void filecopy(FILE *, FILE *);

     

    int main(int argc, char *argv[]){

      FILE *fp;

      if (argc == 1){ /* no args, copy standard input */  

         filecopy(stdin, stdout);  

      }else{

         while (--argc > 0){

             if ((fp = fopen(*++argv, "r")) == NULL)

             {

                printf("cat: cannot open %s\n", *argv);        

                return 1;      

             } else {      

                filecopy(fp, stdout);  

                fclose(fp);

             } 

          }

      }   

      return 0;

    }
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