The thing is, with what you're trying to do, you'll have to check each input (if you want it to repeat until they get it right at least). Which, unless there's some math library I don't know about out there to check answers, means you'll have to put in the correct answers (like a switch statement or something, or at least that's what comes to mind first for me).
I'm looking at it right now and I'll let you know if I come up with something.
edit:
I think this might be what you're looking for...
Last edited by devrymike; 04-26-2011 at 05:45 PM..
Reason: code
Hello, i should finished this program, if anyone could tell me whats wrong... This is an optional university work, though i cant leave this nearly finished. I need to see where is my error :(
What my program should do.
The user must type "num_proc" ( number of children). The program creates a... (4 Replies)
Hi,
I often need to find the child processes of a parent process. There may be a string of 4-5. That is, PPID 884 spawns 890, which spawns 894, which spawns 1017. I'd like to be able to see all of them without having to type in a number of ps -ef commands.
Process groups and session ID's are... (2 Replies)
Hi All ,
I'm trying to do a simple math expression ...but unsuccessfull :-(
Anyone can help me?
days=23
amount=`expr ${days} / 30 \* -125`
echo $amount
but as result i got 0 when i expect 95.833333
Another question...how i can limit only to two or three decimal fields?
Thanks in... (1 Reply)
Hi, I am a shell scripting newbie. I am in need of a shell script that will prepend the name of the parent directory to the child directory.
For example if the shell script called rename.sh is invoked with ">rename.sh /home/foobar/Simple" and the structure of the folder Simple is :
Simple... (7 Replies)
Hi, as I understand fork(), it makes a copy of the parent which becomes a child. But is there anyway to make three children for that one parent. So in other words, if I look up the getppid() of the children, I want them to have the same value??
Thanks in advance to any help! (1 Reply)
Hi all,
I have been searching all day for a nice solution to this problem.
I have three scripts. A start script, a child script and a stop script.
Script A (scripta.sh)
Its Child Script B (scriptb.sh)
Script C (kill_process.sh $PID)
Script A correctly traps the kill command sent from... (6 Replies)
Greetings everyone, I need a bit of help in solving the following problem:
I'm given an array of numbers and I have to compute the sum of the array elements using n processes, and the inter process communication has to be done with pipes(one pipe, to be exact).
I managed to solve the problem... (14 Replies)
Hi, I want to display the process tree of a given PID, however, I don't want to see other children of the ancestors that don't reach the current PID.
My goal is, from the tree result, i have to fetch a particular parent process by keyword, and if any other children from parents have the same... (2 Replies)
Discussion started by: ysrini
2 Replies
LEARN ABOUT LINUX
savetextmode
savetextmode(1) Svgalib User Manual savetextmode(1)NAME
savetextmode, textmode - save or restore the complete SVGA status for textmode.
SYNOPSIS
savetextmode
textmode
DESCRIPTION
These are simple scripts to save the SVGA register state when in textmode to the files /etc/vga/fontdata and /etc/vga/textregs
($HOME/.vga/fontdata and $HOME/.vga/textregs if directory /etc/vga is not writeable) or to restore it from these files.
The actual utilities used are restorefont(1), restoretextmode(1), and restorepalette(1).
The purpose of these scripts program is usually to recover from a crashed console due to an svgalib, Xfree or other program bug.
You do this by being a smart guy and running savetextmode right after booting of your machine, prior to any problems. Then, in case the
SVGA state is hosed and you sit in front of a blank or useless console, change VC (maybe login) to get to a shell. Or exist the currently
running program with <Ctrl>-C, <Ctrl>-<Alt>-<Backspace>, or whatever applies. Once you got a shell, run textmode and it will hopefully ren-
der your console useable again.
To make it clear: You do all this while not seeing anything on your console screen, you enter this information blindly or after logging in
from a network. Also, if the keyboard is left in raw mode, nothing can really help you as you cannot enter anything which a shell will
understand.
FILES
/etc/vga/fontdata or $HOME/.vga/fontdata
/etc/vga/textregs or $HOME/.vga/textregs
SEE ALSO svgalib(7), vgagl(7), libvga.config(5), dumpreg(1), convfont(1), fix132x43(1), restorefont(1), restoretextmode(1), restorepalette(1),
runx(1), setmclk(1),
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced utility as well as of the
original documentation is unknown.
It is very likely that both are at least to some extent are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or corrections
to this first version of the svgalib manual.
Svgalib (>= 1.2.11) 2 Aug 1997 savetextmode(1)