Newbie to vi / vim, I normally use pico but using a locked down box (for now) that only has these 2 editors.
I am having trouble getting it to save a file or even just quit. I see others having the same issue and they were told to use :x but even that doesn't work, just throws up an error message.
Is there an exit command that JUST works?
thanks
:q should work, unless the file hasn't been saved.
:q! will work.
:wq will attempt to save and quit, but won't quit if it can't save.
:wq! will attempt to save, and then quit whether or not it can save.
E: Credit to #GregoryNisbet for reminding me: if you have multiple files open, there is a series of 'all' quit commands:
:qa should quit all buffers (open files, more or less).
:qa! will quit all buffers regardless of if they have been saved.
:wqa will attempt to save and quit all buffers.
:wqa! will attempt to save all buffers, and then quit whether or not they are saved.
The solution that has worked for me is
Esp Z + Z
:wq!
Related
If I have just run CodeBlocks, I can build and run the Hello world and I the prompt shows and everything is fine. I close it, change what is written, and this message appears:
ld.exe||cannot open output file bin\Debug\HellowWorld.exe Permission denied|
I need to do way more difficults programs than a helloworld, and I've seen in several webs this problem addressed, but nothing works:
http://forums.codeblocks.org/index.php/topic,15047.30.html[1]
ld.exe: cannot open output file ... : Permission denied
After much reading, I understand it has something to do with how the program handles memory. It's something like, if it thinks there's still a process in execution, it does not let me build it again. But I do close it. I've tried everything: input any text so the windows closes (and it does), going to window task manager and finishing the process itself. It does not work. The kicker is that, if I let a few minutes pass, I can indeed build again and run it again. It's kinda stupid and I need help to fix this.
Even more links: The first one I don't get it. I downloaded it and checked as it's said in the wiki:
http://wiki.codeblocks.org/index.php?title=Creating_a_new_project[3]
The link:
http://www.reddit.com/r/learnprogramming/comments/1rvmhx/i_just_started_programming_and_stuck_from/[4]
I mean, I can have done wrong even that. But it does compile and build and run the first time arround...
Most likely the program is still running. Then you can't replace its executable.
If it doesn't have a visible user interface then you can forcefully terminate it via Task Manager Shift+Ctrl+Esc.
Or simpler, always build as console program, because then you can just close the program's console window.
Is it possible to keep a Python script running even when the user tries to exit out of it by clicking the x (exit) button? thus meaning that the only way to exit will be, suppose like have the quit() command within the script.
The question sounds dumb, but I am CURIOUS!!!
Thanks in advance.
After some research I did find the answer with Tkinter. I had my script run a while loop with a Tkinter dialog that asks for userInput. The script is saved with the .pyw so the user cannot exit out of the script and exiting out of the Tkinter dialog just makes it reappear again. I will not be posting the code here, because I do not want my code to lead to bad things.
A command line program always closes the window after it has finished executing. I know you can use cin.get(); to wait for the user to enter input. Is there a way where the user could press any key (instead of entering something then pressing enter) to close the program? I don't want to use system("PAUSE") as it's Windows specific and slow.
I want it to pause so that the user can see it completed successfully and other details. It would probably not be run from an already open command line and the executable would be double clicked to run.
Yes. "system("PAUSE") is one way. A simple "getchar()" or "cin" should be absolutely equivalent :)
It's an option with the OS and not in C/C++. It needs to control how the Terminal open and close.
Just like if you called a batch or a command line app.
It's too platform dependent to post a code or config here (basically a Console GUI application with onClose statement in our IDE)
So I keep getting this error when trying to compile C++ code using CodeBlocks.
cannot open output file [filename.exe] permission denied
It only started today, and it's sporadic and inconsistent. It usually goes away if I shut CodeBlocks down and restart the project, but not always. Sometimes it even goes away when I just press F9 (build & run) several times. I always check Task Manager, but there are never any .EXEs running with my file's name, or anything related to it.
I've also noticed that if this problem occurs and I then try to delete the .EXE manually or otherwise interact with it, Windows tells me I need administrator permission to do so (this is a private PC, and as far as I know I am an administrator on it).
The first time it occurred, the only thing I had added to the code beyond what was in the previous version was a debugging report sent to cout - hardly anything arcane. It sometimes occurs even when no code was changed from a previous version.
What could this be? It's not game-breaking, yet, but it's irritating and I'd rather it didn't get worse.
EDIT: This is old by now, but just in case anyone else is having similar problems, the workaround I currently use is just to consistently delete [filename.exe] before trying to run the code again. This avoids the problem, though it is annoying.
check that "filename.exe" is not running, I guess you are using Microsoft Windows, in that case you can use either Task Manager or Process Explorer : http://technet.microsoft.com/en-us/sysinternals/bb896653 to kill "filename.exe" before trying to generate it.
I have encountered the same problem you have. I found that it may have some relationship with the way you terminate your run result. When you run your code, whether it has a printout, the debugger will call the console which print a "Press any key to continue...". If you terminate the console by pressing key, it's ok; if you do it by click the close button, the problem comes as you described. When you terminate it in the latter way, you have to wait several minutes before you can rebuild your code.
I just had the same issue. And i experienced that it always happens when i run the programm and change some code without finishing the programm still running. After that the "cannot open ..." message appears.
However i got rid of it by clicking the "Terminate" button at the very top-right side of the console window (red button) and after that "remove all terminated launches" (two x'es right next to the terminate button).
This seems to close the running programm and everything works fine after :) hope this may help anyone
I was having the same problem too and it was driving me crazy:
Windows7 64 bit, MinGW, Eclipse, CDT
Permission denied errors, executable disappearing, ld.exe errors. It would work once, but never again.
Statements like: "cannot open output file ***.exe: Permission denied"
Check your ANTIVIRUS Software. Once I turned off my Antivirus software in workspace then cleaned the workspace and started the project over again I never had the problem again.
This error usually occurs when the IDE has a problem due to a crash or other failure and it still has a hold on the EXE, preventing the user (yourself) from overwriting / deleting the EXE during a rebuild.
Hello I realize this post is old, but here is my opinion anyway.
This error arises when you close the console output window using the close icon instead of pressing "any key to continue"
The problem is related to Sam´s response:
"have encountered the same problem you have. I found that it may have
some relationship with the way you terminate your run result. When you
run your code, whether it has a printout, the debugger will call the
console which print a "Press any key to continue...". If you terminate
the console by pressing key, it's ok; if you do it by click the close
button, the problem comes as you described. When you terminate it in
the latter way, you have to wait several minutes before you can
rebuild your code."
Avoid kill processes, and we have two choices, wait until the process release the .EXE file or this problem will be solved faster restarting the IDE.
You can use process explorer from sysinternals to find which process has a file open.
Try restarting your IDE. It worked for me.
Although I tried to end the process in the task manager, the process never got killed.
I re-installed C::B in drive D, whereas my program files folder is in drive C
I don't know the reason , but it works :)
well,once i had the same problem and after tracking down the process that was getting the file in use i discovered that it was the anti-virus (PANDA) ...i just unlocked the file and simply worked out ....well for my experience i used Unlock 1.9.2 ...try iy out ..
A major cause of this (which I had recently), is if you have this on for example a flash drive.
You can develop and do everything, but on most systems it stops you from running the .exe file from there, whether it be the debug or release version.
In my case - I found a process called
cb_console_runner
I stopped this process and things were ok again.
I had the same Problem. Just rename your .CPP file to other name and try it again.
It worked for me.
FOR LINUX OS...
go to file where u r created file.then usually
......project_name/bin/Debug/project_name.executable here for this executable file you wont be having execute permission then the execute permission.Either by right click if you are unable to change permission then use use open terminal(command promt) to change permission.
first go to that executable file using 'cd' command then use "chmod u+x" then permission is going to change.then go to c::b open and execute you will get output.
only thing for all file u need to do it.
The problem is that you don't have the administrator rights to access it as running or compilation of something is being done in the basic C drive. To eliminate this problem, run the devcpp.exe as an administrator. You could also change the permission from properties and allowing access read write modify etc for the system and by the system.
Make sure to run 7zip in 'Administrator mode' for extracting to Program Files.
Also, temporarily turning off virus protection worked for some people in the past.
I tried what #willll said, and it worked. I didint find exactly the .exe named after my project, but I did kill some weird looking tasks (after checking on the internet they were not critical), and it worked.
I have tried and get output after end task IDE from task manager. Later clean all temporary files from your drive. Start your IDE. Now your .exe working good.
After compiling console programs the console window closes immediately after running. What is the best practice for keeping it open? I've searched google loads, I'm used to codeblocks where you don't have to worry about it, but, I want to mess around with Visual Studio a bit and with VS, my console closes. All over the interwebz there are several different ways to keep it open, however, I've read that most of them are bad coding techniques. What is everyones preferred method?
When I'm using Visual Studio and I don't need debugging I just run it using Ctrl+F5 keystroke – and it prevents console from closing.
Since you always run in the debugger, set a breakpoint on the return statement from main().
The debugger is your best friend, learn (and learn early) to use it to your advantage at every opportunity.
Run your program in a console, which would be the expected way of running a console program ...
Alternatively, you can make a little batch file to execute your program that would have:
REM batch file to launch program
yourprogram.exe
PAUSE
and the PAUSE cmd.exe command will ask to user to press any key.
I tend to use system("PAUSE"); which gives you a
Press any key to continue . . .
message.
cin is grossly inelegant but easy for the forgetful to derive:
{
char c;
std::cin >> c;
}
That holds the window open until you type a character /* edit */ and hit enter.
std::cin.get() will close the window the moment you type a character, which, depending on how easily you become habituated, runs a marginally greater risk of "whoops, I wish I hadn't closed that!" than the two-keystroke operator>>(istream &).
Both differ from a system("pause") in that they return in a program-accessible way the value of the character you typed, so, if as not infrequently happens, one kludge leads to another, you can write a switch statement based on what you typed to (for example) exit immediately, write some values to a log, run it again, etc.
I use:
cin.get()
I heard it was less costly than system("PAUSE") and it works on POSIX systems too.
There's a great link that goes into detail about this.
Resist the temptation to do anything. Well behaved command line programs exit when they've finished running reporting a status via their exit code. This enables them to be scriptable and 'good citizens' in automated environments. Even in an interactive environment, why force the user to make an extra key press just because of your debugging environment?
If you run, rather than debug then Visual Studio will open a console windows that pauses after your application exits so that you can still view the output. I don't know why the behaviour is different when you debug, perhaps because you have breakpoints available so if you want to see the output at various stages you can place breakpoints after the relevant output statements, or at the end of main or enable various 'stop on exception throw' options.
Whatever the reason, I've never felt compelled to compromise the behaviour of my application just to enhance my debugging experience.
A very common one is to just put in code to read a key from the console after your main application code closes. The keystroke read in just gets thrown away, but it holds the console open.
It's not pretty, necessarily - but I often do this wrapped in a debug define, so during debugging, the console is held open. During release, I'm usually not running inside VS, and when run from a command line, this is no longer an issue.
The "don't do that" responses in this thread may seem curt, but they're fairly sensible. I happened across this question because I'm debugging a gtest suite that used to run fine, but now crashes mysteriously when launched. When run from the console, it pops up a dialog saying "blah.exe has stopped working"; but, when run from the debugger, the console pops up momentarily, vanishes, and the program exits with 0 status.
I should have been thinking about how odd this difference in behavior was, but instead I was like: "Aw, man---I gotta make that console window stay up so I can see what it says." Right?
It turns out that the machine I'm working on (a colleague of mine's) had the 'Command Arguments' for the debugger set to '--gtest_filter=*testMsg*'. I noticed this right away, too, but it never occurred to me that all the tests matching the filter had been renamed in a recent commit. So, when launched from the debugger, gtest wasn't finding any tests to run and was simply exiting. Another 90 minutes of my life I'll never get back. (-_-) I could have ditched this tar baby a lot sooner if my knee-jerk reaction hadn't been to think I needed that console window to stay open in order to solve the problem...
Call this function before you return at the end of main:
void onEnd()
{
printf("Press any key to exit...");
_getch();
}
You can specify that the executable is a Console app, not a Windows app, at least in VS2017. This makes your application run in a "Microsoft Visual Studio Debug Console", with "Press Any Key To Close This Window" appearing at the end of the console output:
Right click the project to bring up Properties.
Linker > System > Subsystem > Select "Console".
Press Apply before closing.