03-06-2018
Looking for guidance on learning the shell
Hello everyone! I am a mechanical engineering student from Brazil, and I'm trying to get into numerical simulation in fluid dynamics.
A teacher recommended OpenFoam and from what I've been reading, it seems that I need to get familiar with ''the Shell'' at first, and this is why I'm here. I just started using Linux, so I'm kinda lost. I would like to know if you guys recommend any book or material for getting started, and on what I should focus on the beginning. Sometimes, especially during the initial phase, newbies can get dizzy from all the overwhelming information.
Thank you so much in advance!
TL;DR Where to get started learning the shell and what should I focus on
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LEARN ABOUT SUSE
tk_focusnext
tk_focusNext(n) Tk Built-In Commands tk_focusNext(n)
__________________________________________________________________________________________________________________________________________________
NAME
tk_focusNext, tk_focusPrev, tk_focusFollowsMouse - Utility procedures for managing the input focus.
SYNOPSIS
tk_focusNext window
tk_focusPrev window
tk_focusFollowsMouse
_________________________________________________________________
DESCRIPTION
tk_focusNext is a utility procedure used for keyboard traversal. It returns the "next" window after window in focus order. The focus order
is determined by the stacking order of windows and the structure of the window hierarchy. Among siblings, the focus order is the same as
the stacking order, with the lowest window being first. If a window has children, the window is visited first, followed by its children
(recursively), followed by its next sibling. Top-level windows other than window are skipped, so that tk_focusNext never returns a window
in a different top-level from window.
After computing the next window, tk_focusNext examines the window's -takefocus option to see whether it should be skipped. If so,
tk_focusNext continues on to the next window in the focus order, until it eventually finds a window that will accept the focus or returns
back to window.
tk_focusPrev is similar to tk_focusNext except that it returns the window just before window in the focus order.
tk_focusFollowsMouse changes the focus model for the application to an implicit one where the window under the mouse gets the focus. After
this procedure is called, whenever the mouse enters a window Tk will automatically give it the input focus. The focus command may be used
to move the focus to a window other than the one under the mouse, but as soon as the mouse moves into a new window the focus will jump to
that window. Note: at present there is no built-in support for returning the application to an explicit focus model; to do this you will
have to write a script that deletes the bindings created by tk_focusFollowsMouse.
KEYWORDS
focus, keyboard traversal, top-level
Tk 4.0 tk_focusNext(n)