[Linux file] writes a user-entered string to a file instance

 //use the Get function from the standard input (keyboard) to obtain a carriage return to the end of the string, you can take a space  //run time screen prompts the input character, to enter the end of the  //need to note that the string to be entered in the Writebuf, Cannot exceed 30 bytes and will not take carriage return line   #include  <fcntl.h>  #include  <stdio.h>  #include   <string.h> int main (int argc,char *argv[])  {   int fd;       //file Descriptor    int temp;    //Temp variable    char writebuf[30];  //for storing write strings    if (ARGC&NBSP;!=&NBSP;2)      //If reference string error    {     printf ("Plz  input the correct file name as  ' exam307writefun filename ' \ n ');      //output Hint string      return 1;   }    Else   {     fd = open (* (argv + 1), O_RDWR| O_CREAT,S_IRWXU);      //Open the file, and if not, create the    }   printf ("the file descriptor is %d\n ", FD);//Print File descriptor    printf (" Plz input the strings and use enter  as the end!\n ");    gets (WRITEBUF);                         // Writes the data entered by the terminal to the file    temp = write (Fd,writebuf,strlen (WRITEBUF));    // Use file descriptor to invoke file    printf ("the input length is %d\n", temp);       close (FD);    return 0; }

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[Linux file] writes a user-entered string to a file instance