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(emacs)Shell Options

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Enter node , (file) or (file)node

Shell Mode Options
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   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.