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Top Forums Shell Programming and Scripting How to exit from the parent script while the child is running? Post 302859999 by cjcox on Friday 4th of October 2013 11:33:38 AM
Old 10-04-2013
Just backgrounding a child doesn't insure that it will not respond to HUP... so this is why the nohup command should be used on a child to ensure that it gets parented by the "init" process. If you don't use nohup, depending on what streams are left intact, you might just have a zombie parent and possibly blocked child in the end as well. Nohup is your friend.
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XtUnmanageChildren(3X)						   XT FUNCTIONS 					    XtUnmanageChildren(3X)

NAME
XtUnmanageChildren - unmanage children SYNTAX
typedef Widget *WidgetList; void XtUnmanageChildren(children, num_children) WidgetList children; Cardinal num_children; ARGUMENTS
children Specifies a list of child widgets. num_children Specifies the number of children. DESCRIPTION
The XtUnmanageChildren function performs the following: o Issues an error if the children do not all have the same parent or if the parent is not a subclass of compositeWidgetClass. o Returns immediately if the common parent is being destroyed; otherwise, for each unique child on the list, XtUnmanageChildren performs the following: - Ignores the child if it already is unmanaged or is being destroyed and marks it if not. - If the child is realized, it makes it nonvisible by unmapping it. o Calls the change_managed routine of the widgets' parent after all children have been marked if the parent is realized. XtUnmanageChildren does not destroy the children widgets. Removing widgets from a parent's managed set is often a temporary banishment, and, some time later, you may manage the children again. SEE ALSO
XtManageChildren(3X), XtManageChild(3X), XtUnmanageChild(3X), XtChangeManagedSet(3X), XtIsManged(3X) X Version 11 Release 6 XtUnmanageChildren(3X)
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