bash backspace not working

On Windows 10 (Fall Creators Update) both TERMs don't produce this error (at least for me). terminal had problems with some control characters. It worked. Okay, yeah, I didn't know of this issue. To solve the backspace problem, type Code: $ stty erase ^H And if you want to go to the previous commands that you've typed, /sbin/sh does not provide this feature, you have to use bash, so type Code: $ bash This User Gave Thanks to gabam For This Post: Corona688 Login or Register to Ask a Question Previous Thread | Next Thread 32 related questions found. Normally you figure out which key code the shell sees and assign this to your desired "widget". Rather than dig through all of that you can manually set the backspace definition at the CLI or in your .profile, .bashrc, or .bash-profile file in your $HOME directory as you desire or based on the flavor of *NIX you are using. 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 easiest way (which did not work everytime while testing) is to simply reinstall terminfo and termcap via setup.exe, as mentioned here: Backspace does not work in Cygwin. How could this behavior be fixed so backspace removes character instead of adding these characters? How to tell which packages are held back due to phased updates. FWIW, I tried rebuilding bash locally (first time, so hopefully it's OK) and it seems to fix the issue. In the terminal, type Ctrl v and press your backspace. 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. Just log in to the machine and type "stty erase " (note the space after "erase") and then hit the backspace key. How do I check if a directory exists or not in a Bash shell script? What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Connect and share knowledge within a single location that is structured and easy to search. I start my mintty session with xterm-256color, and I can reproduce the backspace problem as stated. Click the Options button and enable the Control + Alt + Backspace check box under Key sequence to kill the X server. 3004 Nov 4 2000. within an xterm, I have to type ctrl-backspace to get the backspace to work, if I just type the backspace on it's own it just prints ^H characters. For more information regarding what export TERM=xterm does you can check the following answer. What sort of keyboard do you have? rev2023.3.3.43278. How to have bash write two bash history files without changing bash source code? To learn more, see our tips on writing great answers. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Here is a patch I wrote which solves this issue, which was applied to 0.16.4 source but it should work on newer source with little tuning, let me know if you have problems. How to insert bash scripts inside the PS1 variable. 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: Does Counterspell prevent from any further spells being cast on a given turn? How to Try It in Beta, How AI Search Engines Could Change Websites. You can set the erase character to the one your computer uses with this simple command: Try this and see if the Backspace key works correctly. To change the key mapping of the backspace key to normal: stty erase "^H" Login or Register to Ask a Question Previous Thread | Next Thread (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. How to make the prompt beep with every key press/character printed? Allow the utility to complete the scan and then follow the instructions. Thus, you should try one or all of them to get the key working again. Note that Docker is not mentioned by the user. 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. Clearly this is a regression in or triggered by ncurses 6.1; the changelog mentions some changes to xterm-256color. Ask Ubuntu is a question and answer site for Ubuntu users and developers. So guess it might need some patches to get around this. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. http://linux-journal.blogspot.com/2005/04/fix-vim-backspace-doesnt-work.html, http://lifepluslinux.blogspot.in/2014/08/backspace-doesnt-work-in-vim-on-cygwin.html, How Intuit democratizes AI development across teams through reusability. Are there tables of wastage rates for different fruit and veg? This is also the inference to draw when other keys do not work. Is it known that BQP is not contained within NP? What's the difference between a power rail and a signal line? Try this and see if the Backspace key works correctly. 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. I've been trying to research this issue on Google, but did not find anything conclusive. And what the value of TERM you have tried? Works for me on a bash integrated terminal in vscode. Bulk update symbol size units from mm to map units in rule-based symbology. This is a big hope to restore the keys functionality to Chrome and other applications. export TERM=xterm will set the emulator to xterm. (Yes! Maybe the ncurses update is at fault? bash terminal This solution is likely to work for most users. typing echo xy does print y, but shows at the command line while typing as $ echo x y, and typing echo xy does print yx but shows at the input line as $ echo xyx. You can easily fix it by going to Settings > Text and images and turning off the Use slash commands and preview emojis, mentions, and markdown syntax as you type feature. I got linux on my PC and prefer the tcsh shell. What I'd like to do is bind both ^? The former one allows you to press one key at a time for keyboard shortcuts and the latter one tells the keyboard to ignore repeated keystrokes. 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. Learn more about Stack Overflow the company, and our products. Where does this (supposedly) Gibson quote come from? How is an ETF fee calculated in a trade that ends in less than a year? I am seeing this problem, but my shell is bash. 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. Rebuild bash can fix the problem. So tmux communicated to the remote host properly but we have backspace or some other matching key issue. Looks like the remote host does not support tmux-256color, the TERM value sent by tmux. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Add a comment. You signed in with another tab or window. A journalist by training, he discovered the power of Unix-like operating systems and the command-line interface while learning how to edit video on macOS. Most systems will recognize the latter as Backspace these days as physical terminals have largely been replaced by terminal emulators on PCs, but you may still run into systems that haven't been upgraded and still expect "Ctrl + H.", This is one reason you'll see old Unix hands jokingly use "^H" in messages in the same way people use ironic strikethroughs to indicate "Oops, you weren't supposed to see that!" Also the backspace key works perfectly fine on Git Bash. Getting Delete and Backspace to work just right is nontrivial, especially in a mixed environment, where you talk to console, to X, to bash, to emacs, login remotely, etc. Connect and share knowledge within a single location that is structured and easy to search. Thus, it is wise to switch off these keys when it comes to how to get the Backspace key functioning back normally. Make sure you replace foo with exactly what follows the ^ [. It is wise to try easy and basic solutions first. Ive heard many people complaining about the backspace key not working properly on Discord and this is the Discord glitch. Ctrl + C Tags: Backspace Linux sqlplus Unix previous SQL Developer Change Language 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. It's available through the Cygwin installer. not provide terminfo file for that terminal I copied rxvt-unicode-256color [rendering fine] I had exactly this. backspace in Vim instert mode (see here: https://bugs.gentoo.org/154090). Doesn't work for me, apparently the cache was cleaned at some stage. 7 Best MMO Keyboards for a Better Gaming Experience (2022 Guide), 5 Best 1800 Compact Keyboards (Your 2022 Guide), How To Fix Your Keyboard When Its Acting Weird? Unfortunately, theres no alternative key that would do the same as backspace however there may be a workaround: just try to select the text with your mouse/touchpad and tap the delete (DEL) button. ether@jolteon MSYS /w How can I check if a program exists from a Bash script? https://ci.appveyor.com/project/zklhp/msys2-packages/build/1.0.16/artifacts. Can Martian regolith be easily melted with microwaves? 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. You need remove -D_FORTIFY_SOURCE=2 from CPPFLAGS in makepkg.conf file. If it was never working then try what tylerl suggested. Similarly, try using the same problematic keyboard with another laptop or PC. The linux console emulates a vt220 terminal which has the following key-mapping: I encountered this problem when I tried to add bash and use it in a distroless image. TERM=blahblah . I hope that you will enjoy my blog. In my real situation I have input from program, which doesn't call read. Filter keys are useful for easier typing than normal by deterring the keyboard from focusing on repeated or brief strokes. Did you ever resolve this? Apparently it was fixed for them after bash was updated, but I don't know it it was just rebuilt or maybe something else. To fix this, you may need to uninstall the keyboard driver that is experiencing backspace not working problem and then reinstall the driver. But there is a far simpler way found here: xterm-256color 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. How can this new ban on drag possibly be considered constitutional? Fixed it for me rebuilding ncurses against the new cygwin ssp allthough i had to hack about it a bit because the cygwin ssp bailed out with an error to find struct FILE. 4) Reboot your computer; Windows should then reinstall your keyboard automatically. You don't need to open tmux. Doing your suggested change results in backspace working for both. Once you press [ENTER] you should be able to press your [BACKSPACE] key and have it backspace/delete whatever you typed. The Linux console keyboard layout assigns keysym Delete to keycode 14 and keysym Remove to keycode 111. If the backspace was working okay initially and no longer is then try using the "reset" command. It does exactly the same thing as the backspace key. I banged the keyboard and about three cigarettes worth of ash fell out. 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, Announcement: AI-generated content is now permanently banned on Ask Ubuntu. Best Terminal for cygwin. Why is there a voltage on my HDMI and coaxial cables? I reinstalled MSYS2 from scratch and updated all packages, no issue so far. All keys seems work correctly for me. Not the answer you're looking for? As it appears its a bug in the Microsoft Edge browser so the solution is quite simple: just use a different browser (such as Chrome or Firefox). E.g. to your account. Thanks @Tom for your link that fixed the issue for me. Most of the information in https://web.archive.org/web/20120621035133/http://www.ibb.net/~anne/keyboard/keyboard.html is indeed what you need. I found a solution to a problem that presented like the one above. Can you give more details of how you installed and invoked Cygwin, and where exactly the backspace key fails to work? The best answers are voted up and rise to the top, Not the answer you're looking for? What's the difference between a power rail and a signal line? Hmm ok scratch that, for some reason one of the updates had deleted the fstab file, after recreating it it worked again. vegan) just to try it, does this inconvenience the caterers and staff? presto precise digital pressure canner 12 quart minute math pdf; pipeline patrol pilot jobs colorado harbor freight fuel transfer pump; bladder lining shedding in urine teen movie archive porn; puberty porn girl If there is a hardware error, the problematic keyboard will work on another PC or laptop. You can check what control characters the system uses with the stty command. Also check if the Fn key on the keyboard is not locked. Copyright 2020-2023 Techtreatbox.com | All rights reserved. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You should be able to configure what exactly is sent when pressing the Backspace key in your terminal emulator's settings. Making statements based on opinion; back them up with references or personal experience. ether@jolteon MSYS /w EDIT2: My bad the error occurs on Windows 10 as well. $ TERM=xterm-256color Slow Requests on Local Flask Server; Automatically setting the id HTML attribute of a form element in flask-wtforms; Docker-compose flask app not printing output from 'print' Just to chime in the new ssp changes break building ncurses, undefined references to FILE in ssp/stdio.h and ssp/whar.h. What I am doing then is to type <up> to get that command line from the history and edit it, i.e. That should hopefully solve your issue! Learn more about Stack Overflow the company, and our products. The problem is that there are many ways to represent a backspace, but the read command doesn't understand all of them. 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. Say it is ^H . If the above fail to work, the last resort, you may interrupt the current line to start it over in the new line. pacman -U /var/cache/pacman/pkg/ncurses-6.0.20170708-2-x86_64.pkg.tar.xz. This did not fix the issues.. however, it did allow me to then perform an update via the plugins manager which got me to version 0.1.11638 which resolved the backspace issue and gives the wonderful ERD. The user's problem with the terminal in a remote machine and the problem I faced in a docker container may be caused by the same issue, which is related to the terminfo (about terminfo). It only takes a minute to sign up. All character is changed strrange character, Force telnet / ssh to use crtl-H for backspace, Read and process a string, char by char, yet allow user to simple line edit the input, Tmux Terminfo problem with Zsh key bindings. command but not successfully. What I don't understand though is why my shell handles backspace as expected, but reading from stdin in my app does not. If you have checked your keyboard and it is physically good, have checked and updated the keyboard drivers, and have detected no malware attack, it is time to update Windows 10 / 11 if the Backspace key is still not working. However, it may not work for all users, as the underlying cause could be related to hardware. This is because your default shell is sh, to use bash, just run bash from your shell. If you are wondering how to fix backspace key on windows 10/11 this should be the very first thing to try. Can Martian regolith be easily melted with microwaves? Why do many companies reject expired SSL certificates as bugs in bug bounties? Making statements based on opinion; back them up with references or personal experience. How do I get to know the value of TERM? Changing `TERM` (e.g. or stty erase "^?" depending on which of these you normally see when you hit your backspace. 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.. After establishing the connection, the remote shell would contain the same $TERM value, while setting it to an unsupported value is one of the reason why Backspace stops working. This will add it to the .bashrc and everything may work nicely! @SomeCallMeTim: I was able to fix this issue by using Minty, cygwin behaves in very wierd manner at times. We and our partners use cookies to Store and/or access information on a device. We try our best to keep things fair and balanced, in order to help you make the best choice for you. They are easy to follow and have both basic and advanced measures. This article aims to help you with the problem and gives you some solutions to what to do if your backspace doesnt work anymore. 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. Continue with Recommended Cookies. I tried ssh from cygwin (in windows) to Debian. Here's how you can easily remediate this issue. Just wondering why the backspace key does not work within SQL*Plus? If so, how? 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 + ? If the read command sees the end of file marker (EOF) before the line is terminated by a newline, it will not treat it as a successful read. Fortunately, this is easy to fix with a simple command. Deleting ~/.minttyrc helped here (or I was just lucky and that was unrelated..). Downgrading ncurses solved it for me. How do I get the directory where a Bash script is located from within the script itself? 1,710 views. David holds a B.A. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. But the terminal does seem to interpret \b (backspace) and \e[D (move one column left) correctly. In case it helps. In the terminal, press Ctrl + v and press your backspace. 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. ```. #generic-linux, #linux. Either the last space will get erased (backspace functioning correctly, delete. 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. What sort of strategies would a medieval military use against a fantasy giant? Backspace doesn't work inside running bash script, https://unix.stackexchange.com/questions/131105/how-to-read-over-4k-input-without-new-lines-on-a-terminal, How Intuit democratizes AI development across teams through reusability. Keep in mind that we may receive commissions when you click our links and make purchases. Bash shell: how to reconcile portable configuration files and GUI terminal start-up types (login or interactive)? rev2023.3.3.43278. This worked for me! Since backspace works at the command line, you will can set it using the following: At command line, type: CTRL-V and the backspace character. Please note 16.10 reached the end of its support cycle last month. Can Martian regolith be easily melted with microwaves? This solved the fact that cygwin64 was ignoring backspaces in commands containing line breaks. You should see something like "^ [foo". Have a question about this project? But it worked like a charm to me thanks to Yuksel, The problem was with 'termInfo' files, Steps he have suggested, confirm if the problem is terminal related by typing in CygWin Terminal, this should give (ignore the warning), WARNING: terminal is not fully functional, Get the information of 'TermCap' to which path or directory it is related to by typing below code in CygWin Terminal, infocmp: couldn't open terminfo file /usr/share/terminfo/63/cygwin, Or you might also get something starting with text like 'Reconstructed via infocmp', Run the below code in CygWin Terminal to run the diagnostics to get extra details about the path where the files are saved, that should respond you similar to below text, C:/cygwin / system binary,noacl, C:/cygwin/bin /usr/bin system binary,noacl, C:/cygwin/lib /usr/lib system binary,noacl, C:\cygwin\etc\terminfo /usr/share/terminfo system binary,noacl, cygdrive prefix /cygdrive user binary, noacl, posix=0, auto, from the output, you got from the 3rd step. I have this issue as well. I cd to the bash dir of the msys2 packages repo and issued makepkg --skippgpchec -sCLf and it stopped/errored after some time with IIRC undefined type or something. The simplest fix by far. It is useful when the physical keyboard has stopped working well. How Much Storage Should a Gaming PC Have in 2022? Thank you for the information. David has been able to combine his passion for computing and writing in his career as a freelance writer. There are several different ways to set your backspace key when this happens. Bash is just the most visible of those (assuming there are more packages depending on ncurses). US, UK etc. I don't want to apply a bandaid by setting TERM variables to something other than what was working before my mishap. Type CTRL-h instead of using backspace. You can put this in the shell's startup file, such as .bashrc for Bash and .zshrc for Zsh to have this set automatically when you log into the system. So, I'm new to VS code just installed it and I'm having an issue. I'm guessing this is happening in the shell. 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. Also the backspace key works perfectly fine on Git Bash I tried googling but didn't find what I was looking for! 0. @Rachel Thanks, though I found out that my problem was that the Cygwin install missed some important files (like /usr/lib/terminfo). You can set this in your shell. The best answers are voted up and rise to the top, Not the answer you're looking for? Why does my backspace key keep being unbound from erase? Share. Asking for help, clarification, or responding to other answers. Thanks! 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 ^? (Even though this behavior is unsafe ). In short, it is available for use when your keyboard is not available. Note: if you already installed cygwin just run installer again and add xterm package. 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, backspace not working, even after attempted fix, pkg-config on cygwin will not find the gsl package. Not working means when I tap the backspace it prints a white space in the terminal. Lets check which terminals the remote host supports. The PR linked just above should work around the crash, I hope. 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 Bash backspace deleting one word at a time. You have these five options below available to chose from. Now, you may have thought that something is wrong with Chrome or some malware has done its wicked job. It works in other packages though so id say this is something that needs to be looked at upstream by the ncurses devs. Asking for help, clarification, or responding to other answers. Simply run Cygwin setup again and reinstall termcap and terminfo. 7 Exciting Smartphones Unveiled at MWC 2023, The 5 Weirdest Products We Saw at MWC 2023, 4 Unexpected Uses for Computer Vision In Use Right Now, What Is Google Imagen AI? How to setup a background ssh tunnel which could automatically quit with terminal/session? the following line in your .startup.tty file: stty erase "^H". I don't know why they were missing; found someone else with that issue, went into setup and told terminfo and termcap to reinstall, and everything worked. $ TERM=xterm-256color Replacing broken pins/legs on a DIP IC package. E.g. I tried stty erase '^?' Whether youre using a laptop or a PC computer, its quite annoying to have your key fail to work. To avoid this, use VT100.backarrowKey: false instead, so: (see also https://wiki.archlinux.org/index.php/Xterm#Fix_the_backspace_key). [broken rendering] Hope this helps someone. Cygwin Terminal backspace and arrow keys not working. What is the correct way to screw wall and ceiling drywalls? At times, your keyboard is greatly influenced by these keys. Theoretically Correct vs Practical Notation. backspace problems, https://web.archive.org/web/20120621035133/http://www.ibb.net/~anne/keyboard/keyboard.html, https://wiki.archlinux.org/index.php/Xterm#Fix_the_backspace_key, How Intuit democratizes AI development across teams through reusability. by choronzon Tue May 14, 2013 12:22 am. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Ok, I had this issue with manually updating a Cygwin install. With over 10 pre-installed distros to choose from, the worry-free installation life is here! For example on my Arch Linux system I have /usr/share/vim/vimfiles . However, after an update, you may have noticed that the shortcut does not work anymore. Now, on it, just press the Backspace key using your mouse. I'd like to fix this frequent problem where the shell on a remote server thinks my terminal's backspace key is ^? (ii) Because Linus decided so. Backspace and Tab keys might not work properly when you're logged in remotely to a Linux system. `Why doesn't the Backspace key generate BackSpace by default?' (i) Because the VT100 had a Delete key above the Enter key. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Many SSH clients let you modify the setting that controls how the Backspace (or delete) key functions. I checked my /var/log/pacman.log which ended with: So, somewhere between 2018-01-15 and 2018-01-30 this regression happened. The reason the keys (generally) do not work out-of-the-box is partly lack of configuration (as you will see later, simply creating .inputrc/.cshrc already helps a lot) and a more difficult issue which I will try to describe below.. It should delete the highlighted part of the text. What video game is Charlie playing in Poker Face S01E07? Well, the operating system comes with an integrated keyboard troubleshooter. 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