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Needed help in understanding these procedures?

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Top Forums Shell Programming and Scripting Needed help in understanding these procedures?
# 1  
Old 05-26-2008
Needed help in understanding these procedures?
Hi all,
i needed some help in understanding a few procedures and how exactly is the sequence?
Code:
FINISHED="Done"

COLUMNS=$( stty -a | head -n 2 | cut -d " " -f2 |cut -d " " -f4 )
COLS=$((${COLUMNS} -${#FINISHED} - 5))


RET_ARR="\010"

KILLLINE=${RET_ARR}${RET_ARR}
for i in $(seq 1 $COLS)
do
    KILLLINE=${KILLLINE}${RET_ARR}
done


echo -n "0"
multiecho $(($COLS-4)) " "
echo '100%' ;


echo -n "|"
multiecho $COLS " "
echo -n "|"

PERCENTAGE=$(($COLS * $DESTFILESIZE / $SOURCEFILESIZE ))
       echo -e -n $KILLLINE"|"
    multiecho $PERCENTAGE "="

The destfile and the source file contain the size of respective ones..
I have not included them....
just pasted which part ive not understood
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LEARN ABOUT OPENSOLARIS

tk_menubar

tk_menuBar(1T)						       Tk Built-In Commands						    tk_menuBar(1T)

__________________________________________________________________________________________________________________________________________________

NAME

       tk_menuBar, tk_bindForTraversal - Obsolete support for menu bars

SYNOPSIS

       tk_menuBar frame ?menu menu ...?

       tk_bindForTraversal arg arg ...
_________________________________________________________________

DESCRIPTION

       These  procedures  were used in Tk 3.6 and earlier releases to help manage pulldown menus and to implement keyboard traversal of menus.	In
       Tk 4.0 and later releases they are no longer needed.  Stubs for these procedures have been retained for backward  compatibility,  but  they
       have no effect.	You should remove calls to these procedures from your code, since eventually the procedures will go away.

       From Tk 8.0 onwards, you should instead construct your menubar as a normal menu and then attach it to the toplevel of your choice using the
       -menu option of that widget.

SEE ALSO

       menu(1T), toplevel(1T)

KEYWORDS

       keyboard traversal, menu, menu bar, post

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWTk	      |
       +--------------------+-----------------+
       |Interface Stability | Uncommitted     |
       +--------------------+-----------------+
NOTES

       Source for Tk is available on http://opensolaris.org.

Tk																    tk_menuBar(1T)