In the remote host, run #stty erase ^H . @Alexpux, what's wrong with _FORTIFY_SOURCE=2? Either the last space will get erased (backspace functioning correctly, delete. This malfunctioning means the issue lies in the keyboard driver. remove the by typing a backspace. You can check what control characters the system uses with the stty command. This simple comment is certainly the best solution I have seen to this. When it comes to why my Backspace is not working in Chrome, MS Word, or Windows 10 / 11; it is required to troubleshoot the issue by scanning the related hardware as well as software. [broken rendering] 31.3k 9 80 107. I'm running very simple script which reads line by line and prints entered line back to terminal: It works fine, but when I'm trying to edit line with backspace character it prints ^?instead of deleting character. Phil. You can check if there are any mappings set, and where they came from, like this: You need remove -D_FORTIFY_SOURCE=2 from CPPFLAGS in makepkg.conf file. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. I have this issue as well. If you preorder a special airline meal (e.g. I just rebuilt bash from current msys2-packages and installed it and the issue seems gone. Thus, you should try one or all of them to get the key working again. 2) Type devmgmt.msc and press Enter. 5 comments. If the key works, it means that your physical keyboard is somewhat damaged or broken. Bulk update symbol size units from mm to map units in rule-based symbology. Making statements based on opinion; back them up with references or personal experience. Backspace and arrow keys not working in (how to fix)vi/vim editor in ubuntu 14.04 /linux mint. I did nothing special. If you are using vi / vim text editor and the backspace key doesn't work in the insert mode, run the following command to fix this: :set backspace=indent,eol,start To fix "not working" backspace key in the insert mode permanently, add set backspace=indent,eol,start command to vi / vim configuration file in your $HOME directory. Reboot your laptop or PC so that Windows can reinstall the keyboard automatically. Look for the "erase" character. Browse other questions tagged. Connect and share knowledge within a single location that is structured and easy to search. It's definitely a problem of tcsh since in any other application the backspace works fine. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Beside "stty" solution, you may try the "TERM" solution. How do I print colored text to the terminal? Ok thats a bit simpler, but wont it affect other sources to remove the hardening ? Maybe the ncurses update is at fault? Thanks for contributing an answer to Super User! However, this shortcut is implemented by the X server and may not work if X hangs in some ways. Is it known that BQP is not contained within NP? It's like the shell reads the keys correctly but not able to re-render the input line correctly. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Doug So Recovering from a blunder I made while emailing a professor. in my .bashrc file, and use some other terminal to access the server, it often ends up wrong. In my case, the remote machine doesn't support "screen-256color": so either modifying the tmux config or setting directly export TERM="xterm-256color" would solve the problem. Minimising the environmental effects of my dyson brain. Not sure cygwin has good terminal emulation, as far as I know, cygwin just using regular windows console which lacks terminal emulation (may be wrong). Trying to delete characters in insert mode with the backspace key sometimes doesn't seem to work. If it doesn't say "^H" this may be your problem. Doing your suggested change results in backspace working for both. Does it do anything? If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. 5.3 How to tell X to interchange Delete and Backspace % xmodmap -e "keysym BackSpace = Delete" -e "keysym Delete = BackSpace" Or, if you just want the Backspace key to generate a BackSpace: Just updated the repo and simple `makepkg` in the bash directory. You'll see what code is sent as "erase". Changing `TERM` (e.g. My backspace key and zsh vi-mode are broken on command line when i use tmux. What sort of strategies would a medieval military use against a fantasy giant? ether@jolteon MSYS /w If you are wondering how to fix backspace key on windows 10/11 this should be the very first thing to try. Switch to the Compatibility tab and you should get these options: Now you can change the Backspace key generates: setting. I'm seeing the same issue with a fresh Cygwin install. I was missing the terminfo entries for my terminal. And what is the difference? How to setup a background ssh tunnel which could automatically quit with terminal/session? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? Would you mind sharing your build procedure? Then I set my TERM to xterm-256color which caused the issue to appear; downgrading ncurses to 6.0 fixes the issue. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. with stty erase ^H or stty erase ^? vim set backspace backspace= backspace .vimrc set backspace=2 3 0 same as ":set backspace=" (Vi compatible) 1 same as ":set backspace=indent,eol" 2 same as ":set backspace=indent,eol,start" cp /usr/share/vim/vimrc ~/.vimrc set backspace=indent,eol,start The PR linked just above should work around the crash, I hope. It might help us identify where the problem lies. Why do many companies reject expired SSL certificates as bugs in bug bounties? I tried stty erase '^?' After connecting from Fedora to an OpenWrt host with ssh the remote bash I encountered this problem when I tried to add bash and use it in a distroless image. bash terminal How to Connect Two Monitors To One Computer With One VGA Port? How to check if a string contains a substring in Bash. @elieux there are conflicts in cygwin headers, I do have the described issues as well. (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. Follow Up: struct sockaddr storage initialization by network format-string, Identify those arcade games from a 1983 Brazilian music video, How to tell which packages are held back due to phased updates. SSD as primary or secondary drive on a small Linux server? Your answer could be improved by explaining why your solution correctly would resolve it for the user in the question. ether@jolteon MSYS /w By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. and sometimes it thinks it is ^H, and happens to be incorrect and outputs the wrong character when I press backspace. #generic-linux, #linux. This will add it to the .bashrc and everything may work nicely! With over 10 pre-installed distros to choose from, the worry-free installation life is here! US, UK etc. TERM=blahblah . Today I ran pacman -Syu which upgraded the following packages (from the end of /var/log/pacman.log): After this update the arrow keys and backspace don't work correctly at the shell input line, in a weird way. Problem with finding FILE strict is solved yesterday. Thanks for contributing an answer to Super User! Fix 4: Reinstall the Keyboard Driver This is the solution to try if the Backspace key of the on-screen keyboard does not function. Isn't there a better fix for struct FILE? This worked for me! To get rid of the corrupted keyboard driver, simply uninstall the keyboard. Basically, each time you hit backspace your cursor is moved to the beginning of the text field. The space you're seeing is the space that was supposed to stomp on the previous character. I encountered a similar issue, that when ssh to a remote machine from tmux, my Backspace key starts to generate spaces instead. 6,402, 678 Maybe key mapping. Theres one solution to that, you can install the Shortcut chrome extension and override the default browsers settings or get used to the new keys combination introduced by Chrome: Now, in Chrome, you need to use the backspace key alternative, meaning a new set of keys to navigate. So I'm stuck having to manually type stty erase [whatever] to fix it when I notice the backspace key is wrong. when in a cygwin, how can I display the windows folder where cygwin is installed? Logged in to "-bash", not to "bash". Re: del and backspace no longer work. Add a comment. FWIW, I tried rebuilding bash locally (first time, so hopefully it's OK) and it seems to fix the issue. At times, your keyboard is greatly influenced by these keys. Have a question about this project? Use This Guide), Cursor Disappears in Chrome? One correction to the information, is of their suggestion (for XTerm): While this will get XTerm to send the right character, and change stty to have backspace as ^?, it will still erroniously report ^H as backspace under some occasions, breaking i.e. See some explanation here https://unix.stackexchange.com/questions/131105/how-to-read-over-4k-input-without-new-lines-on-a-terminal. ``` vegan) just to try it, does this inconvenience the caterers and staff? Hello, I have the same problem. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? This would be more helpful if it explained a little more and how to change it, but it was the problem I had. What video game is Charlie playing in Poker Face S01E07? Ok, I had this issue with manually updating a Cygwin install. Switch to the Compatibility tab and you should get these options: Now you can change the Backspace key generates: setting. . Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Why backspace key is not working? @Rachel Thanks, though I found out that my problem was that the Cygwin install missed some important files (like /usr/lib/terminfo). I hope that you will enjoy my blog. SSH only works if I specify the key with -i, change home folder permissions on exit/disconnect, Securely Piping String in Local Text File to Remote Command using SSH, Login SSH using RSA key instead of normal login. Linux is a registered trademark of Linus Torvalds. Similar to the Backspace key, you can fix the issue using the stty command if Tab doesn't work in the terminal. So, I'm new to VS code just installed it and I'm having an issue. Did you ever resolve this? now copy all the files and folders that exist inside /usr/share/terminfo to the folder C:\cygwin\etc\terminfo - Here what I did: In package manager due installation I selected to install xterm: X11 terminal emulator, after installation I added SET TERM=xterm to the .bat file (like proposed above), launched terminal and in Options -> Terminal menu selected Type=xterm, then restarted terminal. Thanks for contributing an answer to Ask Ubuntu! In my real situation I have input from program, which doesn't call read. Is there a single-word adjective for "having exceptionally strong moral principles"? ), 17 Best Makeshift Mousepads And Alternatives (2022 Update). You may have to check the "Hide Obsolete" checkbox for term to appear in the search. No idea why. Whether it is hardware or software. Make sure you replace foo with exactly what follows the ^ [. Why is this sentence from The Great Gatsby grammatical? Lets check which terminals the remote host supports. vegan) just to try it, does this inconvenience the caterers and staff? Can you give more details of how you installed and invoked Cygwin, and where exactly the backspace key fails to work? 9 Ways To Unlock Mac Keyboard (2022 Update), Right-click your keyboard driver or software and select. I found this one that worked for me. rev2023.3.3.43278. Well occasionally send you account related emails. Something tells me we should hold off on this version untill it becomes more stable. Note that on the command line, the backspace works as expected, but when my program (a simple TCP socket based chat client) is reading from stdin, the backspace character prints (echoes back to the screen) ^?instead of deleting the last character. I am using tmux to force the error since it uses an relatively uncommon terminal config. Short story taking place on a toroidal planet or moon involving flying, Open tmux (basically another terminal within a terminal app), From tmux run ssh command & check TERM setting, Check the following locations and find the, Open a new session to refresh your terminal. Since it seemed that OpenWrt repos did (NOT fixed after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. And when I press Ctrl + backspace the output is ^H. ncdu: What's going on with this second size column? For some reason the color terminal setting I was using was present under my regular user ie file called .terminfo/x/xterm-24bit, but not under the root user. Did you know that windows 7, 8, and 10 can troubleshoot your keyboard? If the above fail to work, the last resort, you may interrupt the current line to start it over in the new line. Now, on it, just press the Backspace key using your mouse. They might say something like "I love Linux system mangling^H^H^H^H^H^H^Hadministration.". I noticed this using gVim in Windows. That should hopefully solve your issue! ether@jolteon MSYS /w Ask Ubuntu is a question and answer site for Ubuntu users and developers. Try this and see if the Backspace key works correctly. Never experienced your problem. If there are any new updates, Windows 10 / 11 will be installing them. rev2023.3.3.43278. First, enter CTRL + V ALT + CyrChar in your shell. However, after an update, you may have noticed that the shortcut does not work anymore. This is also the inference to draw when other keys do not work. Not working means when I tap the backspace it prints a white space in the terminal. If you hit ^L you can see that backspace IS working. or stty erase "^?" depending on which of these you normally see when you hit your backspace. This is the only thing that worked for me, especially since if you have to SSH to a server (not all fixes will work) I used to add stty erase ^? Spacebar, Enter, or Backspace Not Working Method 1: Turn off Sticky Keys and Filter Keys In Windows 10, there are two functions - Sticky Keys and Filter Keys. If this is the reason, you will have to run your antivirus or antimalware software to get rid of the malware. And what's the output of the. with stty erase ^H or stty erase ^? Bash, how to globally fix ^H and ^? Learn more about Stack Overflow the company, and our products. It's because the default mintty TERM is xterm, and the issue appears to be related to TERM being xterm-256color - which is required for some programs to display more than 8 colors. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. What I don't understand though is why my shell handles backspace as expected, but reading from stdin in my app does not. You can set this in your shell. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. [rendering fine] Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. As an Amazon Associate, I earn from qualifying purchases. rev2023.3.3.43278. If the backspace was working okay initially and no longer is then try using the "reset" command. So perhaps all packages depending on ncurses need re-compile? If the issue is only with the Backspace key, you can try and disable the filter or sticky keys. It does support xterm-256color which we know our terminal app supports. Print some odd charachters? To do this, put. The problem is that there are many ways to represent a backspace, but the read command doesn't understand all of them. I also know of other people bumping into this issue, which, again, is quite a dealbreaker. Allow the utility to complete the scan and then follow the instructions. In the terminal, type Ctrl v and press your backspace. Can I tell police to wait and call a lawyer when served with a search warrant? I just installed Cygwin and the BACKSPACE functionality is not there, i.e. I tried ssh from cygwin (in windows) to Debian. Best Terminal for cygwin. This is also the case with the Sticky key. terminfo file from source host to remote host directory: xterm-256color Following are the steps for disabling these keys on Windows 10/11: Heres a video that will guide you step-by-step: This is another easy solution to try and find where the problem lies. How do I get the directory where a Bash script is located from within the script itself? Up arrow works but then the shell doesn't clean up the line with history inputs and just appends the history items to the line. Crtl C and V worked, Ctrl-Z did not, Z worked. If you're using the terminal to log in to remote systems, you can be even more productive with the combination of tmux and Mosh, letting you create sessions that can keep you connected forever. My terminfo folder was entirely missing. is it possible in HP-UX HPE GreenLake Products Support Contact Dashboard Applications Devices Manage My cart Close Close HPE GreenLake Cloud Consoles When you set the TERM type you are telling the host which TERMCAP to use to draw within the terminal window. Reinstalling does not work either and i cannot recompile it either because the bootstrapped version also cannot find itself. How could this behavior be fixed so backspace removes character instead of adding these characters? How to make the prompt beep with every key press/character printed? The cursor keys work too since the bash 4.4.0.19-1 and still with 4.4.0.19-2 . Whether youre using a laptop or a PC computer, its quite annoying to have your key fail to work. This may be unintentional; Vim sees CTRL-H as a backspace (because CTRL-H is the ASCII code for a backspace), so you also cannot map anything to that. How is an ETF fee calculated in a trade that ends in less than a year? You signed in with another tab or window. Console applications read ASCII sequences, not keysyms. What's the difference between a power rail and a signal line? pacman -U /var/cache/pacman/pkg/ncurses-6.0.20170708-2-x86_64.pkg.tar.xz. I have tried all 5 options but none of them fixed the issue. Okay, yeah, I didn't know of this issue. Weve got you covered, so lets go through 8 ways to fix the problem: When it comes to fixing the Backspace key, there are a few solutions to execute. This should help. You can now navigate webpages in Chrome by pressing Alt + left arrow to open a previous page and Alt + right arrow to move forward. Therefore I suggest you add the export TERM=xterm in bash_profile or bashrc. ether@jolteon MSYS /w Then use bind '"\efoo":kill-word' to bind that to the kill-word command. You can fix the Tab issue with the same as above. How is an ETF fee calculated in a trade that ends in less than a year? And during that research, I was led to the above link. ```. Verify that the remote host shell TERM setting matches your terminal's term setting (localhost) and that the remote host supports the TERM setting. I solved the problem by using ash.exe and run pacman -Syu bash in it. How to tell which packages are held back due to phased updates. Similarly, try using the same problematic keyboard with another laptop or PC. Look around putty's options menu for a "send hard reset" option as well. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. bash terminal: can the find and make duplicate text be extended globally--Apple? The latter is possible when you use the virtual keyboards Backspace key. Can Martian regolith be easily melted with microwaves? The linux console emulates a vt220 terminal which has the following key-mapping: I tried the following with and without a ~/.bashrc file: Pressing few chars and then a backspace seems to print a space. I usually use this to fix any funky character output in my terminal. On the other hand, I also have another account on the same machine & when I ssh through this account, its terminal works perfectly fine. @whtyger this worked for this script. Pressing the Backspace key, depending on how the key is defined, may either perform a destructive backspace (deleting the character to the left of the cursor while moving the cursor to the left) or move the cursor to the beginning of the line. Using indicator constraint with two variables. If your Backspace key is not working in the current console, you may try the following ways to work around it: Ctrl + Backspace Ctrl + H Ctrl + ? Is this possible? 4. And what the value of TERM you have tried? I'm seeing it now on my new Cygwin install, though it previously worked. I've emailed several times over the past year, but it doesn't seem like a priority. Something wrong with shell or termcap library on debian. I found a solution to a problem that presented like the one above. Im a developer, a dad, and a big tech enthusiast. @Cyrus My Backspace works as I want it deletes last character always, even for this script from question without. They don't have a public issue tracker. How to match a specific column position till the end of line? Improve this answer. The best answers are voted up and rise to the top, Not the answer you're looking for? What I am doing then is to type <up> to get that command line from the history and edit it, i.e. [rendering still fine] Share. Ive heard many people complaining about the backspace key not working properly on Discord and this is the Discord glitch. EDIT2: My bad the error occurs on Windows 10 as well. How can this new ban on drag possibly be considered constitutional? Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. You may notice this problem when you log in to remote machines over SSH, ones that run non-Linux Unix operating systems, particularly proprietary systems like Oracle's Solaris. Now, if you still use VI, sometimes the translation doesn't work and you have to actually type ^H in vi, but that's OK. You could have said: stty erase k [ENTER] Click the Options button and enable the Control + Alt + Backspace check box under Key sequence to kill the X server. I banged the keyboard and about three cigarettes worth of ash fell out. Here's how you can easily remediate this issue. Also the backspace key works perfectly fine on Git Bash. If you have tried all the above-mentioned fixes and nothing works then chances are that its a software-specific issue. Hmm ok scratch that, for some reason one of the updates had deleted the fstab file, after recreating it it worked again. Is it with the keyboard or with the laptop? One of the easiest ways to fix this problem is to type /bin/bash at the command line interface prompt: $ /bin/bash The afore mentioned command will execute the Bourne Again Shell on top of the existing shell as a subprocess. Your answer could be improved by explaining the issue, i.e., the underlying cause of the problem and why your solution correctly would resolve it for the user in the question. The Linux console keyboard layout assigns keysym Delete to keycode 14 and keysym Remove to keycode 111. Why is there a voltage on my HDMI and coaxial cables? Esc, Enter, and Spacebar are prone to stop operating altogether with backspace, which is very common. Where does this (supposedly) Gibson quote come from? If the file is not a POSIX compliant text file, the last line may not include a newline character . The best answers are voted up and rise to the top, Not the answer you're looking for? I tried checking the Backarrow sends ^H and Delete sends DEL settings in "broken" mode, but it did not seem to help, instead doing nothing when pressing those characters, if I recall correctly. I suspect I have to change a key translation table somewhere. It's available through the Cygwin installer. How to follow the signal when reading the schematic? However, it may not work for all users, as the underlying cause could be related to hardware. Additionally, I now can't build bash with makepkg, there's some compile error with an unknown type IIRC - this is after the msys2 runtime was updated to cygwin 2.10 . Styling contours by colour and by line thickness in QGIS. I searched for issues with backspace key and i tried checking and unchecking iterm's "delete key sends ^H" option but it did not change backspace behavior. to my .bashrc but this only fixed the issue 80% of the time. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? How To Fix Backspace Key on Laptop/PC with Windows 10/11, Fix 2: Check the Backspace Functionality on Another Laptop or PC, Fix 6: Scan for viruses and Other Malware, More specific cases of not working backspace key, Backspace Not Working in Chrome to Delete Text, The Backspace Key is Not Working in Excel, The Backspace Key is Not Working on Discord, The Backspace Key is Not Working in Outlook. Thank you for the information. vegan) just to try it, does this inconvenience the caterers and staff? Just happened for me as well. to your account. Windows keyboards also have a Delete key, but this deletes characters in a forward direction. FWIW, my original /usr/bin/bash.exe is from 2017-02-15, so almost a year old, and building a fresh one (same version 4.4.12(1)-release (x86_64-pc-msys), using makepkg) did fix it for me. Thanks for pointing out the shortcomings of my previous answer. key. Do I need a thermal expansion tank if I already have a pressure tank? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Luckily, the problem is rather easy to fix. In the right panel, you will see the Onscreen Keyboard option. I build my application image with the multi-stages build. ether@jolteon MSYS /w How do I check if a directory exists or not in a Bash shell script? Cygwin Terminal backspace and arrow keys not working. The virtual keyboard works as the physical one and is likely to aid you in finding out why is the backspace not working on Windows 10. It's great that this answer helped some other users, but in this case it's not the solution to the question since the original question isn't asking about vim. i newer had any problem with it so im curious. Can Martian regolith be easily melted with microwaves? maybe related: https://bugs.archlinux.org/task/57300?project=1&string=ncurses, Possibly interesting development: mintty/mintty#738 (comment). If so, how close was it? If you hit the "BACKSPACE" key and it does not go backward it's because the terminal is probably looking for a different character based on the TERM type. Connect and share knowledge within a single location that is structured and easy to search. Since I installed a newer version I got a problem: The delete as well as the backspace key work both like delete in tcsh's in xterms under X11R6. @SomeCallMeTim: I was able to fix this issue by using Minty, cygwin behaves in very wierd manner at times. Share Improve this answer edited Jan 2, 2021 at 17:14 seminar 3 2 Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Enter the following in terminal and check what happens: export TERM=xterm. Say it is ^H. by choronzon Tue May 14, 2013 12:22 am. Consider you're using bash as shell and vt100 as terminal: ps: TERM should be announced via ssh automagically, but in some circumstances this magic fails. Thanks. The Backspace key is a popular shortcut in Chrome. I tried googling but didn't find what I was looking for! It only takes a minute to sign up. (Even though this behavior is unsafe ). The best answers are voted up and rise to the top, Not the answer you're looking for? Just wondering why the backspace key does not work within SQL*Plus? (2022 Edition), Can You Use Zoom on Firestick? My backspace did nothing, when it should have sent a destructive delete. You should see something like "^ [foo". Now it does the 'usual' backspace. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Arrow keys and backspace not working in bash after recent update, ignore package upgrades for certain packages, https://bugs.archlinux.org/task/57300?project=1&string=ncurses, [MSYS2] Term=xterm-256color does not support backspace and command history correctly, (cosmetic) xterm-256color is unreliable when using MinGW manually, https://forum.voidlinux.eu/t/solved-problems-after-todays-update/4553, ncurses: Fix double-free and prevent crash, Arrow keys broken in msys2 bash programs after installing Terminal, (fixed after rebuilding bash): editing keys don't work in CLI in bash with.