Shell Mode Options
If the variable comint-scroll-to-bottom-on-input is
non-nil, insertion and yank commands scroll the selected window
to the bottom before inserting.
If comint-scroll-show-maximum-output is non-nil, then
scrolling due to the arrival of output tries to place the last line of
text at the bottom line of the window, so as to show as much useful
text as possible. (This mimics the scrolling behavior of many
terminals.) The default is nil.
By setting comint-scroll-to-bottom-on-output, you can opt for
having point jump to the end of the buffer whenever output arrives--no
matter where in the buffer point was before. If the value is
this, point jumps in the selected window. If the value is
all, point jumps in each window that shows the Comint buffer. If
the value is other, point jumps in all nonselected windows that
show the current buffer. The default value is nil, which means
point does not jump to the end.
The variable comint-input-ignoredups controls whether successive
identical inputs are stored in the input history. A non-nil
value means to omit an input that is the same as the previous input.
The default is nil, which means to store each input even if it is
equal to the previous input.
Three variables customize file name completion. The variable
comint-completion-addsuffix controls whether completion inserts a
space or a slash to indicate a fully completed file or directory name
(non-nil means do insert a space or slash).
comint-completion-recexact, if non-nil, directs <TAB>
to choose the shortest possible completion if the usual Emacs completion
algorithm cannot add even a single character.
comint-completion-autolist, if non-nil, says to list all
the possible completions whenever completion is not exact.
Command completion normally considers only executable files.
If you set shell-completion-execonly to nil,
it considers nonexecutable files as well.
You can configure the behavior of pushd. Variables control
whether pushd behaves like cd if no argument is given
(shell-pushd-tohome), pop rather than rotate with a numeric
argument (shell-pushd-dextract), and only add directories to the
directory stack if they are not already on it
(shell-pushd-dunique). The values you choose should match the
underlying shell, of course.
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