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Top Forums UNIX for Advanced & Expert Users What my puzzle file!, How to remove special characters ?? Post 302790197 by bakunin on Friday 5th of April 2013 01:47:51 AM
Old 04-05-2013
Quote:
Originally Posted by arm_naja
-- After remove it by vi (I press x for 3 times because it have 3 char right?) --
Code:
root@MyHost /tmp> wc puzzle.txt
       1       0       1 puzzle.txt
root@MyHost /tmp> cat -v puzzle.txt

root@MyHost /tmp> ls -l puzzle.txt
-rw-r--r--    1 root     system            1 Mar 28 10:55 puzzle.txt
root@MyHost /tmp>

How I remove special chars???
The short answer is: you can't The single char "ls" shows is the End-of-File-character (literally a "^D") and it isn't possible with "vi" to delete it. In fact "vi" will even append such a EOF char to a file if it was missing.

Generate a file with "touch", it will have 0 characters. Now open this in "vi", write some text, delete it completely (this way "vi" thinks you have changed the file, do NOT use the undo-function) and save the file. You will notice that it has also 1 character in it - the EOF char.

I hope this helps.

bakunin
 

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tangram(6x)							XScreenSaver manual						       tangram(6x)

NAME
tangram - watch the computer solve tangram puzzles. SYNOPSIS
tangram [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number] [-wireframe] [-viewing_time number] [-rotate] [-fps] DESCRIPTION
The tangram program uses a few basic shapes to build silhouettes of recognizable objects. OPTIONS
tangram accepts the following options: -visual visual Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual. -window Draw on a newly-created window. This is the default. -root Draw on the root window. -delay number Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.). -wireframe | -no-wireframe Render in wireframe instead of solid. -viewing_time number Specify the length of time, in seconds, that the finished puzzle should be displayed. Default: 5 -rotate | -no-rotate Rotate the camera around the puzzle. -fps Display the current frame rate, CPU load, and polygon count. ENVIRONMENT
DISPLAY to get the default host and display number. XENVIRONMENT to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property. SEE ALSO
X(1), xscreensaver(1) COPYRIGHT
Copyright (C) 2005 by Jeremy English. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. AUTHOR
Jeremy English <jhe@jeremyenglish.org> X Version 11 5.15 (28-Sep-2011) tangram(6x)
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