Function Returns Post: 302979346

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Top Forums Shell Programming and Scripting Function Returns Post 302979346 by akechnie on Friday 12th of August 2016 04:01:21 PM

08-12-2016

Registered User

Quote:

, you have the logical error that the "command substitution" will replace the function with its output to stdout while the (exit) code conveyed by the return command can be retrieved in the $? parameter.

Thanks so much, and just so I understand your quote above. Does this mean that the $zone value I'm returning from the function set_region will just be wiped out everytime?

Also does this look better for the if statement, I'm not sure if || means or, because I'm only looking for those numbers?

Code:

if [$zone eq 4] || [$zone eq 5] || [$zone eq 6] || [$zone eq 7] || [$zone eq 10] || [$zone eq 11] || [$zone eq 20] || [$zone eq 21] || [$zone eq 23] || [$zone eq 25]
then
                        $zonecheck=1
                else
                        echo "That's not a region\n"
                fi

---------- Post updated at 04:01 PM ---------- Previous update was at 03:31 PM ----------

Now it just hangs and throws the same error when you hit enter.

Using comments might be easier for me to explain what I'm trying to do:

#A function to call another function to get a user to enter a valid region in a variable
#Use that variable in another command
#Print out the results from the command

#A function for getting the users region and making sure it's in a valid list
#Request the user input a region and get it in a variable
#A while loop that keep going as long as the user input doesn't match a valid region
#A for loop to test the user input against the valid regions
#Matching with a valid region exit the while loop
#Not matching rerun through the while loop
#Return the zone that was found to be valid

Last edited by akechnie; 08-12-2016 at 05:09 PM..

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xmscrollvisible

XmScrollVisible(library call)											     XmScrollVisible(library call)

NAME

       XmScrollVisible -- A ScrolledWindow function that makes an invisible
	descendant of a ScrolledWindow work area visible

SYNOPSIS

       #include <Xm/ScrolledW.h>
       void XmScrollVisible(
       Widget scrollw_widget,
       Widget widget,
       Dimension left_right_margin,
       Dimension top_bottom_margin);

DESCRIPTION

       XmScrollVisible makes an obscured or partially obscured widget or gadget descendant of a ScrolledWindow work area visible. The function re-
       positions the work area and sets the specified margins between the widget and the nearest viewport boundary. The widget's location relative
       to  the	viewport determines whether one or both of the margins must be adjusted. This function requires that the XmNscrollingPolicy of the
       ScrolledWindow widget be set to XmAUTOMATIC.

       scrollw_widget
		 Specifies the ID of the ScrolledWindow widget whose work area window contains an obscured descendant.

       widget	 Specifies the ID of the widget to be made visible.

       left_right_margin
		 Specifies the margin to establish between the left or right edge of the widget and the associated edge  of  the  viewport.   This
		 margin is established only if the widget must be moved horizontally to make it visible.

       top_bottom_margin
		 Specifies  the  margin  to  establish between the top or bottom edge of the widget and the associated edge of the viewport.  This
		 margin is established only if the widget must be moved vertically to make it visible.

       For a complete definition of ScrolledWindow and its associated resources, see XmScrolledWindow(3)

RELATED

       XmScrolledWindow(3).

														     XmScrollVisible(library call)