command-line parameters.

This is a discussion on command-line parameters. within the C Programming forums, part of the General Programming Boards category; Write a program, invoked with command-line parameters, which reads a file (whose path is specified as the last of 3 ...

  1. #1
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    Red face command-line parameters.

    Write a program, invoked with command-line parameters, which reads a file (whose path is specified as the last of 3 command-line parameters), searches for each occurrence of the string given as the first parameter and replaces it with the string given as the second parameter. The program is thus invoked by:

    repa11 <string1> <string2> <file>

    i.e." replace all occurrences of string 1 by string 2 in file" If spaces or other" white space characters are included in either string is to be delimited by double quotation marks.

    I know how to do command-line parameters by ANSI-stardard C.
    But i donot know what it means?

  2. #2
    the Corvetter
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    The command line args are argc and *argv[]. They work like this:

    argc is the # of args
    *argv[] is the array of strings
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  3. #3
    and the hat of int overfl Salem's Avatar
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    >But i donot know what it means?
    You open the file
    You read each line
    If the line contains string1 then you replace it with string2

    Topics
    fopen / fclose / fgets / fputs - reading and writing files
    strcpy, strcat, strstr - string handling
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