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Help for my first program, first post!

 
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Old 03-23-2006
Power Help for my first program, first post!
Hi guys (and girls!),

Need some help for my program (C IN UNIX Environment)

Basically I want to have a C program which, for an existing file supplied by the command line argument (E.g. File1.txt) replaces all the occurrences of the words “We” or “we” by “I”; “a” by “the”; and “A”
by “The”. Then print the replaced file. All other characters of the file are to be left unchanged.

I know basically to change a string of characters you use:
String.Replace("oldval","newval");

How would you go about doing this to an entire txt file???

I was told by more experienced ppl I may have to use read, write, open, lseek commands.

Sorry for those of you who think this is ezy, just learning and any help is great!!

Thanks....
 
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LEARN ABOUT MOJAVE

ark

ARK(1)                                                           KDE User's Manual                                                          ARK(1)

NAME

       ark - KDE archiving tool

SYNOPSIS

       ark [-b] [-a] [-e] [-c] [-f suffix] [-p] [-t file] [-d] [-o directory] [KDE Generic Options] [Qt(TM) Generic Options]

DESCRIPTION

       Ark is a program for managing various compressed file formats within KDE. Archives can be viewed, extracted, created and modified with Ark.
       The program can handle various formats such as tar, gzip, bzip2, zip, rar (when the appropriate libraries or command-line programs are
       installed).

OPERATION MODES

       Ark can be used either as a stand-alone GUI program as well as a command-line program in order to perform some specific tasks.

       If invoked without the -b (--batch) or -c (--add) options, Ark is started as a normal GUI program.

       When the -b (--batch) option is used, Ark can be used to extract the contents of one or more files directly from the command-line, without
       launching its GUI.

       When the -c (--add) option is used, Ark prompts for files that should be added to a new archive or to an existing archive.

OPTIONS

       -d, --dialog
           Show a dialog for specifying the options for a batch or add operation.

       -o, --destination directory
           Default the extraction directory to directory. If not passed, the current path is used.

   Options for adding files
       -c, --add
           Query the user for an archive filename and add specified files to it. Quit when finished.

       -t, --add-to filename
           Add the specified files to filename. Create archive if it does not exist. Quit when finished.

       -p, --changetofirstpath
           Change the current directory to the first entry and add all other entries relative to this one.

       -f, --autofilename suffix
           Automatically choose a filename, with the selected suffix (for example rar, tar.gz, zip or any other supported types).

   Options for batch extraction
       b, --batch
           Use the batch interface instead of the usual dialog. This option is implied if more than one url is specified.

       -e, --autodestination
           The destination argument will be set to the path of the first file supplied.

       -a, --autosubfolder
           Archive contents will be read, and if detected to not be a single folder archive, a subfolder by the name of the archive will be
           created.

EXAMPLES

       ark --batch archive.tar.bz2
           Will extract archive.tar.bz2 into the current directory without showing any GUI.

       ark -b -d archive.tar.bz2 archive2.zip
           Will first show an extraction options dialog and then extract both archive.tar.bz2 and archive2.zip into the directory chosen in the
           dialog.

       ark --add-to my-archive.zip photo1.jpg text.txt
           Will create my-archive.zip if does not exist and then add photo1.jpg and text.txt to it.

AUTHORS

       Ark is currently maintained by Harald Hvaal haraldhv@stud.ntnu.no and Raphael Kubo da Costa kubito@gmail.com.

       This man page was first written by Lauri Watts lauri@kde.org in 2005 for KDE 3.4, and was later updated in 2009 by Raphael Kubo da Costa
       kubito@gmail.com.

AUTHORS

       Lauri Watts <lauri@kde.org>
           Author.

       Raphael Kubo da Costa <kubito@gmail.com>
           Author.

K Desktop Environment 2.13 (KD                                      2009-09-10                                                              ARK(1)