I have fish shell with omf with agnoster theme and git-plugin installed.
I would like to tune my prompt a bit. Does anyone here know where/how I do that. I ran fish_config; but that did not show my current prompt properly. So I am reluctant to go that route. I would rather do it by typing it in; but can't figure out where the final prompt is being stored. I tried 'echo $fish_prompt'. Did not help.
Would appreciate some help. Thanks!
fish_prompt is a function. See https://fishshell.com/docs/current/cmds/fish_prompt.html. To see where it is defined run functions --details fish_prompt. There is no "final prompt [is] being stored" as I understand that phrase. There is a function that creates the prompt. Your echo $fish_prompt would only output something useful if the prompt was a literal string (which isn't supported). You can use functions --all fish_prompt to see where it is defined and the content of the function.
When I used Fish I did not use OMF (I'm now an Elvish user). I had a custom function defined in ~/.config/fish/functions/fish_prompt.fish. So I can't explain how to customize the OMF "agnoster" theme prompt. You'll need to read the documentation for that theme to learn what knobs, if any, it provides for customizing its behavior.
Short answer: edit function fish_prompt in file: .local/share/omf/themes/agnoster/functions/fish_prompt.fish.
Explanation:
This exact file may not work in cases with different plugin's and/or different theme.
The way I figured this was to search for all "*prompt.fish" functions in my home directory. Put a distinct print statement with the prompt in each one of them and check which one got printed and modified the fish_prompt.fish function in that file - which is working for me!
typing and executing a single line command in octave cli is simple.
for example a=1.
If one wants to edit this command and execute it again it is possible by navigating the history with the up/down keys.
But when executing a multi line command-script, one can still navigate to a single line and edit it, but how to execute the all script again, without going line by line in the history and "enter" the line?
for example:
for i=1:6
a(i) = i;
end
Is there a way to open the all script in an editor, edit, and re-execute it?
Yes there is, via the history command.
E.g. history -q 3 will display the last 3 commands -- the -q switch means do not prepend line numbers, such that the output is copy-pasteable.
You can also use the -w switch to redirect the output to a file, which you could then modify in your editor and call as a script, as you suggest.
If you're using the GUI, you can also use the history pane to highlight the lines you're interested in (in the order that you want them!), and paste directly into the editor window.
I use the plugin SimpleSession with Sublime Text 3 (but any plugin could be considered). If I save a session with multiple windows, this creates a .simplesession file. How can I open that session file just by clicking on the file? The goal is to avoid having to launch ST3 and use the Command Palette to run the "Load Session" command. Currently, clicking on the .simplesession file causes ST3 to open it as a regular file.
Sublime doesn't know that a simplesession file is important in any way, so double clicking on one is going to open it the same as Sublime would open any other file.
Since it's a plugin that created the file, that plugin is the only thing that knows that it's special and what to do with it. So what you really need is the way to tell the plugin to take the action for you.
All actions in Sublime (including things as simple as inserting text) are taken by executing a command. Here that would be a command in the plugin that created the file in question, which would tell it that you want to carry out the action you would normally take manually, such as loading a session.
To do that from within Sublime you'd do something like bind a keyboard key to the appropriate command, add it to a menu, the command palette, etc. If you want to take the action from outside of Sublime, then you need to communicate that command to Sublime in order to get it to execute.
In core Sublime you can do this by executing the subl program that ships with Sublime and tell it a plugin command that you would like to execute.
Although it's possible to do this, the solution provided here has the requirement that Sublime already be running due to technical limitations within Sublime itself, but more on that in a moment.
This answer will give you the information that you need to formulate the command line that you need to execute in order to get the plugin command to run and carry out the action that you desire.
If you want to run this command in response to double clicking a file of a particular type (here a simplesession file), how you do that is specific to the operating system and file browser that you're using, and is best asked as a separate question.
Assuming you instead want a level of integration where you just have a desktop shortcut, start menu entry, etc that does this, this is more straight forward because such a shortcut is really just a visual wrapper that executes a command of your choosing.
Again, how you would do that is different depending on your OS, but the important part is knowing what full command line you need to give to the shortcut to be able to run it, which is what this answer tells you how to construct.
Important Note: The specific package in your question implements a load_session command, which prompts you for the session to load from a list of sessions you've previously created.
This command doesn't take any argument that would tell it what session to load without asking you to pick one first. As a result, what you want isn't technically possible without more work because there's no way to directly tell the load_session command the file that you want to open.
In order to more fully automate things in this particular case, the underlying package needs to be modified. In particular either the load_session command would need an optional argument which, when given, would cause it to load that session without prompting first, or
a new command would need to be created to do the same thing.
If you're not comfortable or knowledgeable enough to make such modifications to the package directly, you need to either find someone that will do that for you or (even better) discuss it with the package author, since that is a feature that others would probably enjoy as well.
The first thing you need to know is, "What command in the plugin is the one that I need to execute to do what I want?". In some cases you may already know exactly what command you need to use because it's documented, or you have already made a custom key binding for it, and so on.
If you don't know the command you need to use, check the documentation on the package (if any) to see if it mentions them. In your particular case, the README on the package page specifically mentions a list of commands, of which load_session seems like the most appropriate fit.
Lacking any documentation, the next easiest thing to do would be to ask Sublime directly. To do this, select View > Show Console from the menu or press the keyboard shortcut associated with it, Ctrl+`. In the console that appears, enter the following command and press enter.
sublime.log_commands(True)
Now whenever you do anything, this console is going to show you exactly what command Sublime is executing, along with any arguments that it may be passing to the command. This remains in effect until you use the same command with False or restart Sublime.
With logging turned on, select the appropriate command from the command palette and see what the Console says.
For example, with this package installed, I get output like the following:
>>> sublime.log_commands(True)
command: show_overlay {"overlay": "command_palette"}
command: load_session
This is showing two commands; first I opened the command palette which uses the show_overlay command, and then I selected the SimpleSession: Load command, which is the load_session command with no arguments.
In order to get Sublime to execute the command from the command line, you use the --command command line argument to subl. So in order to get Sublime to run the load_session command, you can enter the following command in a command prompt/terminal in your OS. This is also the command you would set in your desktop shortcut.
subl --command "load_session"
This presumes that you've set up Sublime so that it's in the path (how you do that is OS specific). If running subl in a terminal gives you an error about a missing command, either add the Sublime install directory to the path or use a fully qualified file name in place of subl (e,g. "C:\Program Files\Sublime Text 3\subl" if you're on Windows); either requires you to know what location Sublime is installed in.
If you want to use a command that takes arguments you need to include the arguments in the command as well, in the same way as they were displayed in the console above.
It's important that the command name and the arguments all be considered one command line argument, which requires you to wrap the whole thing in quote characters, since otherwise the spaces will make it appear as multiple arguments.
If you forget this, Sublime will respond by opening files named after the different parts of the command and arguments that you tried to open under the mistaken belief that you're giving it files to open.
As a concrete example, to get Sublime to open the command palette from outside of Sublime, the command to do this would look like the following if you were on Linux/MacOS:
subl --command 'show_overlay {"overlay": "command_palette"}'
Note again that we are passing exactly what the console showed above, but the whole thing, command and arguments, are wrapped in single quotes so that the terminal knows that the entire value is one argument.
This makes things a little tricky on Windows, which doesn't allow single quotes. On that platform you need to use double quotes instead. This requires you to "quote" the internal double quotes with a leading \ character so that the command processor knows that they're part of the argument and not the double quote that ends the argument.
For the case of opening the command palette on Windows, the command thus looks like this:
subl --command "show_overlay {\"overlay\": \"command_palette\"}"
With this information in hand, you can set up something like a desktop shortcut to run the appropriate command, or potentially set up the file explorer that you're using to execute a command specifically when you double click on a file of your choosing.
Again, how you would do that is specific to the operating system that you're using, and so I'm not really covering that in depth here in this answer. Just keep in mind that regardless of the OS in question, the part that remains the same is that you need to use subl command like the above.
Now, in your particular case, if the package that you're using provided a command that would let it load the session directly without prompting you first, the command that you use would need to also include the name of the session file as one of the command arguments.
However, as I mentioned above, this package doesn't currently allow that at the moment.
Now, here is the GIANT CAVEAT with this whole thing; this only works if Sublime is already running.
The subl command talks to an existing running copy of Sublime and gives it commands to open a file, directory, run a command as we're doing here, and so on. If Sublime isn't already running, then subl will start Sublime first and then communicate these details to it.
Sublime starts and makes it's interface available to you to work right away, and then starts to load packages and plugins in the background. This is to get you in and working on your files without having to wait for all packages to load first.
An issue with this is that as soon as Sublime starts, subl passes off the appropriate commands and then quits, and since packages aren't loaded yet, the command that you want to execute doesn't exist yet (hasn't been loaded), so nothing actually happens.
Unfortunately there's not really a satisfactory way around this particular issue if you want to start Sublime and also execute commands.
A potential workaround would be use something like a script or batch file that would check to see if Sublime is already running, and if not Start it and delay a little bit to allow plugins to finish loading, then use subl to run the command.
However this would require you to basically guess how long it takes Sublime to finish loading, which is less than ideal.
I have searched far and wide for this but I cannot seem to find it. Is there any way to execute a Lua script via double clicking it (to execute it in Lua (Command Line)) and keep it open after execution?
For example:
print("Hello World")
This code compiles and runs, however if I double click on hello.luait runs and closes immediately without leaving my text on screen. I want something more like this, but without having to go to Command Prompt, changing directory a bunch of times, typing lua file.lua, etc.:
Add io.read() at the end of your script.
The easiest way would be to just add a 'pause' at the end of your script:
print 'Hello World'
os.execute 'pause'
I'm running Matlab 2013a, under Linux, using Xmonad (using the XMonad.Config.Xfce package).
This problem occurs whether the command window is docked or not.
The command window prompt does not get the keyboard focus unless the pointer is located
over the command window.
Is there a way to get the Matlab command window to have focus behaviour just like other normal windows, like a terminal?
Most important: I'd like to have the keyboard focus follow the window focus,
and not require any special positioning of the pointer, so that I can just "Alt-Tab" around my windows and have the command window get the keyboard focus. All of the resources I've found so far relate to programmatic control of focus; I'm just trying to improve my user experience in an interactive session.
To get keyboard focus on the Command Window, include the following in your xmonad.hs
import XMonad.Hooks.SetWMName
import XMonad.Hooks.ManageHelpers
and configure your ManageHook as follows
myManageHook = composeAll . concat $
[ [appName =? a --> doCenterFloat | a <- myFloatAS ]
, (your other hooks)
] where
myFloatAS = ["MATLAB"]
Finally, include setWMName "LG3D" in your startupHook. See here for a full xmonad.hs configuration which uses this (this is where I found the solution). If you have other Java apps that don't get focus as they should you can add them to the myFloatAS list.
It's a problem in the built-in java.
If i run:
export MATLAB_JAVA=/usr/lib/jvm/java-7-openjdk/jre
matlab -desktop
Matlab works as expected.
I ran into this problem, running MATLAB2014a. I set up setWMName "LG3D" but still i couldn't get focus on my window. I had to click on the focused window to get the cursor, and sometimes the situation was even worse and I had to click on random places till i get my cursor back. This wouldn't happen on MATLAB2010. What worked for me was to use the native version of java as describe above.
In the end, i used the following bash script to start matlab8:
#!/bin/bash
export MATLAB_JAVA=/usr/lib/jvm/java-7-openjdk-amd64/jre/
/usr/local/bin/matlab8 -desktop -nosplash