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Operating Systems Linux Rounding Script Help
# 1  
Old 11-26-2009
Rounding Script Help
I need some help with my rouding script. I have started pretty much from scratch and have no idea if its correct or even close but I have been trying and have gotten to this point. i keep getting syntax errors and im not sure what is wrong. Here is what I got
[code]
let value=$1;
while [ magn=1;"$value">\(magn*10\); magn*=10 ]
do
let digit=( $value/magn )%10
if [ $digit >= 5 ]
then
$value+=( "10"-$digit )*$magn
else
$value-=( $digit*$magn )
fi
done
echo $value
[code/]

its supposed to take ./rounders 1447
and output 2000
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LEARN ABOUT MINIX

scriptreplay

SCRIPTREPLAY(1)                                                    User Commands                                                   SCRIPTREPLAY(1)

NAME

       scriptreplay - play back typescripts, using timing information

SYNOPSIS

       scriptreplay [options] [-t] timingfile [typescript [divisor]]

DESCRIPTION

       This program replays a typescript, using timing information to ensure that output happens in the same rhythm as it originally appeared when
       the script was recorded.

       The replay simply displays the information again; the programs that were run when the typescript was being  recorded  are  not  run  again.
       Since  the same information is simply being displayed, scriptreplay is only guaranteed to work properly if run on the same type of terminal
       the typescript was recorded on.  Otherwise, any escape characters in the typescript may be interpreted differently by the terminal to which
       scriptreplay is sending its output.

       The timing information is what script(1) outputs to standard error if it is run with the -t parameter.

       By  default,  the typescript to display is assumed to be named typescript, but other filenames may be specified, as the second parameter or
       with option -s.

       If the third parameter is specified, it is used as a speed-up multiplier.  For example, a speed-up of 2  makes  scriptreplay  go  twice  as
       fast, and a speed-up of 0.1 makes it go ten times slower than the original session.

OPTIONS

       The first three options will override old-style arguments.

       -t, --timing file
              File containing script's timing output.

       -s, --typescript file
              File containing script's terminal output.

       -d, --divisor number
              Speed  up  the  replay  displaying  this  number of times.  The argument is a floating point number.  It's called divisor because it
              divides the timings by this factor.

       -m, --maxdelay number
              Set the maximum delay between transcript updates to number of seconds.  The argument is a floating point number.  This can  be  used
              to avoid long pauses in the transcript replay.

       -V, --version
              Display version information and exit.

       -h, --help
              Display help text and exit.

EXAMPLE

       % script --timing=file.tm script.out
       Script started, file is script.out
       % ls
       <etc, etc>
       % exit
       Script done, file is script.out
       % scriptreplay --timing file.tm --typescript script.out

SEE ALSO

       script(1)

COPYRIGHT

       Copyright (C) 2008 James Youngman
       Copyright (C) 2008 Karel Zak

       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

       Released under the GNU General Public License version 2 or later.

AUTHOR

       The original scriptreplay program was written by Joey Hess <joey@kitenet.net>.  The program was re-written in C  by  James  Youngman  <jay@
       gnu.org> and Karel Zak <kzak@redhat.com>.

AVAILABILITY

       The  scriptreplay  command  is  part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux
       /utils/util-linux/>.

util-linux                                                        September 2011                                                   SCRIPTREPLAY(1)