This is a very simple question that I can't find the answer to. I am in sqlplus (Oracle) and I made a typo and typed "edit" which opens up "afiedt.buf" which I understand will open my default editor which is "vi". Once I am in the editor I get "Wrote file afiedt.buf". Then I would like to see what the contents of the file is. When I type anything, I get a "?". Once I get the "?" I can not ctrl c, ctrl z or anything to get out. How can I exit out and see the contents of the file. I also tried "wq" and "!q". Neither of these commands worked. I would like to be able to edit the file once I have made an error and not type it over. Any help would be appreciated.
You can configure vi as SQLPlus editor with the statement DEFINE _EDITOR=vi (see the SQL*Plus User's Guide and Reference).
If you get back just a ? you are probably using the old ed editor which you can quit by entering the q command (see its guide with man ed).
To come out of sqlplus when any text editor 'vi' or notepad is not configured is by pressing Shift + q and Enter, you will be back into SQL> prompt.
Once you have come out of blank/stuck session back to SQL prompt, you can follow above mentioned suggestions to define an editor.
Try and enjoy!
Related
While willing to write ↩a as a new shortcut for the run all cells above command I could not find how to specify the return symbol in Jupyter Notebook.
Writing return-a or ↩-ain the Edit Command Mode does not work and the modifier is not specified in the help dialog.
Any idea?
Return is not a modifier so shortcut like ↩-a make little sens (pressing enter and A at the same time. ↩,a meaning Return key followed by A key make more sens, but Enter is so pervasive for many actions that it is not usable in user shortcuts. I would suggest you to open an issue on jupyter/notebook on GitHub to ask for return to be added as a convenient way to map to ↩ , though even if we do that we can't guaranty that it will work. If you are willing to try to code that yourself, have a look at keyboard.js, the mapping from enter to displaying ↩ is already done in quickhelp.js, for mac at least.
(1) For example, I want to set map gd g* in Qt's Fakevim like below but failed.
(2) And also I'd like to set F3 as the save command, how to do it?
(3) In Fakevim, it provides an option "Read .vimrc", but where to find the file .vimrc?
Thank you!
It doesn't look like there is a lot of documentation for FakeVim, so official sources might not exist. Most of this was obtained by experimentation.
If you want to dig deeper, I guess there's no source as official as the actual source: http://qt.gitorious.org/qt-creator/qt-creator/blobs/0809986e501415fe2c8508800b94b5b3169dc048/src/plugins/fakevim/fakevimplugin.cpp
User commands
First off, realize that in Tools>Options>FakeVim>User Command Mapping, you're only setting what your user actions will perform, not how you perform them.
By default, user command #1 is triggered by pressing Alt-V, then 1.
Alt-V, then 2, triggers user action #2, and so on.
You can change the keyboard shortcuts through the general QtCreator configuration interface, under Tools>Options>Environment>Keyboard. There is a "FakeVim" section with all the user actions listed. Select your user action of choice, press the little "erase" icon in the input field under "Shortcut", then press your desired shortcut key, which should appear in the input field.
Second, to finish a command where you would normally press enter, you should literally type in <CR> after the commands. You also need to enter in ':' to enter command mode.
So if you wanted to map the vim save command, ":w", to F3 via FakeVim, you would:
Go to Tools>Options>FakeVim>User Command Mapping.
Enter ":w<CR>" as one of the user commands (say #7).
Go to Tools>Options>Environment>Keyboard.
Find the FakeVim action "UserAction7".
Set F3 as a shortcut for it.
Now, every time you're in the editor, you should be able to click F3 and have the FakeVim :w command execute, which will save your file.
Note that there is also an option to set a shortcut for "Save" directly in the QtCreator keyboard settings, so for this particular shortcut you don't actually need to go through FakeVim.
Setting shortcuts for other vim commands should be similar. Note that you're restricted to the subset of vim commands that FakeVim implements. Refer to the source, linked above, for checking any particular command you're wondering about.
Vimrc file
On Linux this would be ~/.vimrc, a file in the user's home directory. I presume you're asking about Windows.
The best source I can find is this bug report about it being hard to use Fakevim's vimrc on Windows: https://bugreports.qt.io/browse/QTCREATORBUG-8748
Following that, the file Fakevim looks for is ".vimrc" in %USERPROFILE% (you can enter a name like that in Explorer to go to the folder). However, it's tricky to access a file with a name like that on Windows. (Thus why the real vim uses '_vimrc' on Windows -- but FakeVim apparently doesn't, at least at the moment.)
Here is a superuser page with workarounds for how to create such files on Windows: https://superuser.com/questions/64471/create-rename-a-file-folder-that-begins-with-a-dot-in-windows
I am trying to add a shortcut or a button in notepad++ to call an external program on the file I am currently editing.
For example, let's say I have the program "analyzer.jar". I would like to create a button (or shortcut) in notepad++ that would directly run the command "cmd -K java -jar analyzer.jar "$(FULL_CURRENT_PATH)".
Since I haven't found any solution yet, any help would be deeply appreciated :).
Well, in fact I found how easy it is to create a shortcut for a command:
Go in the menu and select "Run → Run..." (or press f5)
Type your command
Click on "Save", and select the keyboard shortcut of your choice
Sometimes, when you look for complicated solutions, you don't see the simple ones...
Using Aptana Studio 3 and when using the shortcut ctrl+shift+enter to insert a line above the current line, Aptana will ask offer a drop-down with the following options:
and Insert Terminator + LF
Insert Line Above Current Line
I want Insert Line Above Current only but have been unable to find where to change this key code.
That top option appears to be coming from a key binding in Commands > Source > Move to EOL > "Insert Terminator + LF". Due to a Eclipse peculiarity, those key bindings are not listed in the default key binding preference.
To remove, you have to edit the bundle. It's pretty simple:
Commands > Source > Edit this Bundle. It will create a project in your workspace
Look in the commands folder of that project for the proper command (it should be pretty obvious)
Comment out or change the keybinding. You might have to restart.
For more info, see: http://wiki.appcelerator.org/display/tis/Modifying+your+shortcut+keys#Modifyingyourshortcutkeys-ModifyingtheBuiltInBundles
I am working with vim. I created a new cpp file using
vim xyz.cpp
After opening the file, I added some basic includes and comments. Then I closed it(:wq!) and re-opened it only to find that I am not able to delete/edit the previously written commands, even after pressing i (for insert), although it gets into insert mode and I am able to add new text to the file. I must say that when i am NOT in the insert mode, then I am able to delete individual characters by pressing x . But it doesnt solve my problem.
I checked the file permissions and it says -rwxrwxrwx, so I dont think permissions is the issue. Has anyone faced this problem before. Any kind of help will be appreciated.
Thanks
:help 'backspace' is your friend
Influences the working of <BS>, <Del>, CTRL-W and CTRL-U in Insert
mode. This is a list of items, separated by commas. Each item allows
a way to backspace over something:
value effect ~
indent allow backspacing over autoindent
eol allow backspacing over line breaks (join lines)
start allow backspacing over the start of insert; CTRL-W and CTRL-U
stop once at the start of insert.
When the value is empty, Vi compatible backspacing is used.
Try to set it to
set backspace=indent,eol,start