![]() ![]() Note that the recommended solution of the eshell developers is not to change eshell, but to automatically switch to ansi-term when eshell is incapable of providing the necessary features. ![]() When passed certain options, use ‘eshell-visual-options’. Use ‘eshell-visual-subcommands’ and for commands that are visual only You must tell Eshell which commands are visual, byĪdding them to ‘eshell-visual-commands’ for commands that are visualįor only certain sub-commands – e.g., ‘git log’ but not ‘git status’ – To in this manual as “visual commands,” because they are not simply Programs that need a terminal to display output properly are referred Eshell solves this problem by running such programs in Emacs’s terminal emulator. If you try to run programs from within Eshell that are not line-oriented, such as programs that use ncurses, you will just get garbage output, since the Eshell buffer is not a terminal emulator. They provide facilities to integrate ansi-term with eshell, with a bit of configuration (Eshell manual): I will note that the people who developed Eshell anticipate that users will want to use programs that require fully-functional shell features from within Eshell. EshellĮshell is a different kind of entity, being a terminal and shell written completely in elisp, and making it a special case that I won't get into here. In practice, ansi-term already exists to fulfill this function. It is Emacs, so it would be possible in theory to extend it to fully support all the features of a fully-functional shell. In the Emacs context, M-x shell is a dumb terminal, built from the comint library. But after that, the program will still behave strangely, because you have tricked it into thinking it can use features that aren't there. You will no longer get the warning message, and you won't have to press enter before you can see the program output. If you really want to use such programs in a dumb terminal, without the warning, you could manually set the value of TERM to xterm, i.e., export TERM=xterm There's no guarantee it will function properly, or at all. You can still use a program that requires a fully functional terminal in a dumb terminal. If the value of that variable is dumb, the program knows it can't rely on all the features it expects, and will warn the user with the message reported here. One way to do this is to check the value of the environmental variable TERM. When a program that requires these features is started, it usually checks to see if the terminal supports them. Dumb terminals can only print single color text to the screen, and can't back up or overwrite lines, as is necessary for an interactive display like Mutt provides, or Man uses to scroll up and down through a manual. Terminals without these features are called dumb terminals. Xterm is an example of this, and using these features you can create a complex interface like the Mutt mail program, or formatting and scrolling support as found in the terminal Man page viewer. Some terminals also support escape sequences (which allow for coloured text), clearing lines, and controlling cursor position. All terminals support printing raw text, and accept lines of input ending with a return (enter key). This isn't an Emacs issue per se, but a consequence of how different kinds of terminals process input, and especially output. If you want a full terminal emulator in emacs, you have to use M-x ansi-term instead. M-x shell isn't a fully functional terminal - it simply can't do what you want it to do. Adding an extra (unless window-system (set-face-background 'default "unspecified-bg" (selected-frame))) doesn't work and only confuses graphical frames.That's not an issue, it's a statement of fact. only when invoked with emacsclient -t and not when invoked with emacs). I put the above code in my init file, but only suppresses the background when opening an emacsclient in a terminal, and not emacs itself (i.e. (add-hook 'after-make-frame-functions 'on-frame-open) (set-face-background 'default "unspecified-bg" frame))) I've got it, sort of: (add-to-list 'custom-theme-load-path "~/.emacs.d/themes") ![]() How do I get emacs to use the default background color (no color at all), when the frame is not graphical? I'm using a terminal with a translucent background, and characters with a background color are not "see-through". I'd like to have emacs not to have a background color when I open a frame in the terminal. ![]()
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