bash backspace not working bash backspace not working

What I am doing then is to type <up> to get that command line from the history and edit it, i.e. If it is working, it means that the issue is in the existing keyboard, not in the operating system. edit - bash does build now. I used # stty -icanon to disable the 4k limit, but lost the ability to use backspace (erase). Maybe the ncurses update is at fault? If you use the search box you can find them quickly. First, enter CTRL + V ALT + CyrChar in your shell. On Windows 10 (Fall Creators Update) both TERMs don't produce this error (at least for me). Why backspace key is not working? Then use bind '"\efoo":kill-word' to bind that to the kill-word command. Disconnect between goals and daily tasksIs it me, or the industry? If so, how? :(. Interview Preparation Course; Data Science (Live) GATE CS & IT 2024; Data Structure & Algorithm-Self Paced(C++/JAVA) Data Structures & Algorithms in Python; Explore More Self-Paced Courses; Programming . If I set it to ^H or ^? Just wondering why the backspace key does not work within SQL*Plus? If you have tried all the above-mentioned fixes and nothing works then chances are that its a software-specific issue. Can Martian regolith be easily melted with microwaves? Even am stuck on the same issue and from minty also backspace functionality is not working. Find centralized, trusted content and collaborate around the technologies you use most. Sign in What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? I reinstalled MSYS2 from scratch and updated all packages, no issue so far. I just installed Cygwin and the BACKSPACE functionality is not there, i.e. 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. After connecting from Fedora to an OpenWrt host with ssh the remote bash What is a word for the arcane equivalent of a monastery? Just happened for me as well. Ubuntu and the circle of friends logo are trade marks of Canonical Limited and are used under licence. I followed the advice in this old reddit post: I copied the .terminfo folder from my user directory to the .terminfo folder under my root user directory. How to insert bash scripts inside the PS1 variable. Then click Uninstall device. 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. If you can't get that to work and most everything works properly except the backspace, you can reprogram "getty" on the host you connect to to recognize what you want, and here's how (this is the oldest, most common and most universal way of solving backspace/delete issues): You ssh or telnet to your host and in the host you run the stty command. 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. 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 backspace was working okay initially and no longer is then try using the "reset" command. This deletes the but I am getting: > ls foo.c ls: cannot access 'foo.c'$'\303': No such file or directory. Changing the TERM variable to cygwin and adding SET TERM=cygwin to the .bat file didn't work for me, but I fixed it. How Much Storage Should a Gaming PC Have in 2022? Solved: using "tab", "backspace" and "arrow" keys. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? GitHub / (fixed after rebuilding bash): editing keys don't work in CLI in bash with TERM=xterm-256color . $ echo $TERM The backspace seems to work as expected while using Vim from the terminal in most Linux systems however. 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. Looks like the remote host does not support tmux-256color, the TERM value sent by tmux. Ctrlv + backspace produces nothing For me, the backspace code is the same as. I agree with all the answers here. Solved: Hi I am connecting my HP-UX thru Telnet using putty. Click the Options button and enable the Control + Alt + Backspace check box under Key sequence to kill the X server. 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. The backspace doesn't work in the bash terminal of VS code. Is There Any Shortcut for the Backspace Key on the laptop / PC? If this is your case, check in the tmux config for: The above would set the environment variable TERM to "screen-256color", which would be used by the SSH client to communicate with the remote machine. This seems to happen with arrows and backspace. Is a PhD visitor considered as a visiting scholar? To do this, put. In the terminal, press Ctrl + v and press your backspace. 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 space you're seeing is the space that was supposed to stomp on the previous character. Print some odd charachters? Is it suspicious or odd to stand by the gate of a GA airport watching the planes? This should help. If the above fail to work, the last resort, you may interrupt the current line to start it over in the new line. Some more background to my problem/solution: I had a problem where I need to paste more than 4k characters. Downgrading ncurses solved it for me. 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. However, after an update, you may have noticed that the shortcut does not work anymore. Readers like you help support MUO. The -a flag will give a human-readable output of the control characters. In short, it is available for use when your keyboard is not available. On a Macbook, this key is known as the Delete key. Add a comment. Bash backspace deleting one word at a time. Styling contours by colour and by line thickness in QGIS. Replacing broken pins/legs on a DIP IC package. Best Terminal for cygwin. rev2023.3.3.43278. 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. 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. How do I check if a directory exists or not in a Bash shell script? . How could this behavior be fixed so backspace removes character instead of adding these characters? i newer had any problem with it so im curious. you tell athena what to expect for the backspace key. To do this: Press Windows logo key + R on your. Either the last space will get erased (backspace functioning correctly, delete. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. remove the by typing a backspace. You should be able to configure what exactly is sent when pressing the Backspace key in your terminal emulator's settings. But only on Windows 8.1 using TERM=screen-256color or TERM=xterm-256color. Many SSH clients let you modify the setting that controls how the Backspace (or delete) key functions. This is also the inference to draw when other keys do not work. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. If I set it to ^H or ^? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Doesn't work for me, apparently the cache was cleaned at some stage. ncurses seemed like the most suspicious upgrade, so I downgraded (see instructions on how to ignore package upgrades for certain packages) through: and in the next MSYS2 instance I started, terminal codes for backspace, delete, etc., worked as intended again. 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. I'd highly recommend getting Partition Magic to "sqeeze" your existing Windows partition down in preparation for this process, though. 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. Ok thats a bit simpler, but wont it affect other sources to remove the hardening ? Just updated the repo and simple `makepkg` in the bash directory. UNIX is a registered trademark of The Open Group. @SomeCallMeTim: I was able to fix this issue by using Minty, cygwin behaves in very wierd manner at times. If the problem is with the keyboard, it will not work even in this scenario. In the remote host, run #stty erase ^H. 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. What would work is to use two backspaces, which gives the non-intuitive correct result: @Alexpux any plans to downgrade ncurses soon? 4) Reboot your computer; Windows should then reinstall your keyboard automatically. Thanks for contributing an answer to Super User! vegan) just to try it, does this inconvenience the caterers and staff? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If this is the reason, you will have to run your antivirus or antimalware software to get rid of the malware. Thus, it is wise to use a tool such as Windows Defender or Malwarebytes for detecting malware intrusion. Learn more about Stack Overflow the company, and our products. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If you don't have termcap installed install it but . After removing and reinstalling via cygwin setup.exe I had this problem. Surly Straggler vs. other types of steel frames. His writing has appeared in Techopedia, TMCnet, and the Motley Fool blog network. ether@jolteon MSYS /w Thank you for the information. ``` Is there a proper earth ground point in this switch box? Can you help me to understand this explanation of shell quoting? That link lacks info, but void linux appears to have had a similar issue: https://forum.voidlinux.eu/t/solved-problems-after-todays-update/4553 . This will add it to the .bashrc and everything may work nicely! Backspace started to work correctly! Look for the "erase" character. Please help. Currently I have ASCII DEL. Apparently it was fixed for them after bash was updated, but I don't know it it was just rebuilt or maybe something else. 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. Try this and see if the Backspace key works correctly. The Backspace key is a popular shortcut in Chrome. The best answers are voted up and rise to the top, Not the answer you're looking for? Can you give more details of how you installed and invoked Cygwin, and where exactly the backspace key fails to work? Problem with finding FILE strict is solved yesterday. 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. When I enter TERM=xterm, the problem disappears, even after I set TERM=xterm-256color again. 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. 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] Something tells me we should hold off on this version untill it becomes more stable. Just to chime in the new ssp changes break building ncurses, undefined references to FILE in ssp/stdio.h and ssp/whar.h. ether@jolteon MSYS /w Why do many companies reject expired SSL certificates as bugs in bug bounties? I tried stty erase '^?' 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. Trying to delete characters in insert mode with the backspace key sometimes doesn't seem to work. You can set this in your shell. I have no opportunity to change the program script, this was just an example which represented my issue. I had a custom installed ncurses, that I removed. Look around putty's options menu for a "send hard reset" option as well. I'm guessing this is happening in the shell. Thank you, this worked for me -- previously, in Vim, my backspace key was moving back along the line but was not clearing the letters until I started typing. Re: del and backspace no longer work. I'd like to fix this frequent problem where the shell on a remote server thinks my terminal's backspace key is ^? Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? 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. Manage Settings Thanks. Bash, how to globally fix ^H and ^? And what's the output of the. I banged the keyboard and about three cigarettes worth of ash fell out. Switch to the Compatibility tab and you should get these options: Now you can change the Backspace key generates: setting. Is it known that BQP is not contained within NP? when in a cygwin, how can I display the windows folder where cygwin is installed? @Cyrus My Backspace works as I want it deletes last character always, even for this script from question without. Turning off the filter keys will discard the risk of all probable interruptions to the keyboards overall functionality, which may fix the Backspace issue. and sometimes it thinks it is ^H, and happens to be incorrect and outputs the wrong character when I press backspace. It should delete the highlighted part of the text. In the right panel, you will see the Onscreen Keyboard option. I'll wait patiently for a release to get to pacman. 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. You need remove -D_FORTIFY_SOURCE=2 from CPPFLAGS in makepkg.conf file. key. Now, if you restart your vscode or terminal inside the vscode, TERM will reset to default and the problem will occur again. Deleting ~/.minttyrc helped here (or I was just lucky and that was unrelated..). 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' with stty erase ^H or stty erase ^? So a quick fix is as below: You can fix the Tab issue with the same as above. Okay, yeah, I didn't know of this issue. 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. How to concatenate string variables in Bash, Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools). Copyright 2020-2023 Techtreatbox.com | All rights reserved. I get space when i hit backspace on both minty terminal as well as cygwin terminal, @Rachel Did you ever resolve this? One of them is to clean the keyboard such that all dust and dirt go away. The backspace works on the cmd terminal of VS code though. ), 17 Best Makeshift Mousepads And Alternatives (2022 Update). xterm-256color It resets all the special characters to their default values. Bash 4.4.0.19 fixes the editing key issues for me with xterm-256color, but this new issue remains (both with 4.4.0.12 after a rebuild and also with the pre-built 4.4.0.19 after the update): (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Let know if my zshrc (at the bottom) is incorrect or if there are incompatible plugins or keybinds listed. rev2023.3.3.43278. So if you press ^H (that's CONTROL-H) and your key backs up but you hit the BACKSPACE key and it does not try using stty as follows: The '\' tells it that the next character is going to be a non-printable control-character and to accept it, not "interpret" it. Learn more about Stack Overflow the company, and our products. Acidity of alcohols and basicity of amines. Ask Ubuntu is a question and answer site for Ubuntu users and developers. Thanks @Tom for your link that fixed the issue for me. Most application will expect that you already have the emulator set to something compatible such as xterm or linux. Say it is ^H . vegan) just to try it, does this inconvenience the caterers and staff? FWIW, I tried rebuilding bash locally (first time, so hopefully it's OK) and it seems to fix the issue. Hope there are no side-effects. What sort of strategies would a medieval military use against a fantasy giant? Making statements based on opinion; back them up with references or personal experience. 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. `Why doesn't the Backspace key generate BackSpace by default?' (i) Because the VT100 had a Delete key above the Enter key. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? Backspace versus Delete On a Windows keyboard, the backspace key deletes characters. You should see something like: Logged in to "-bash", not to "bash". Basically, each time you hit backspace your cursor is moved to the beginning of the text field. You ssh to your Debian from some terminal (putty, solaris dterm, debain xterm, you-name-it), this termninal announce capabilities (which includes keys such as Backspace and Tab) via TERM environment variable. Its much worse if it happens to other keys on your keyboard as well. No idea why. Not the answer you're looking for? 78.1k 28 392 615. answered Sep 30, 2015 at 11:52. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Note that Docker is not mentioned by the user. What am I doing wrong here in the PlotLegends specification? You should be able to configure what exactly is sent when pressing the Backspace key in your terminal emulator's settings. Did you ever resolve this? 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. This simple comment is certainly the best solution I have seen to this. 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 This would be more helpful if it explained a little more and how to change it, but it was the problem I had. Bash is just the most visible of those (assuming there are more packages depending on ncurses). 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.. Hope this helps someone. The update for bash to version 4.4.019-1 fixed the shell history in mintty's terminal mode xterm-256color for me. What I'd like to do is bind both ^? To get rid of the corrupted keyboard driver, simply uninstall the keyboard. (7 Things That Will Help You! At times, your keyboard is greatly influenced by these keys. Thanks for pointing out the shortcomings of my previous answer. or stty erase "^?" depending on which of these you normally see when you hit your backspace. Normally you figure out which key code the shell sees and assign this to your desired "widget". To enquire how your keys are mapped: stty -a Look at the "erase =" subsection. What video game is Charlie playing in Poker Face S01E07? Type CTRL-h instead of using backspace. If there is a hardware error, the problematic keyboard will work on another PC or laptop. To learn more, see our tips on writing great answers. ether@jolteon MSYS /w 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. The simplest fix by far. So guess it might need some patches to get around this. I usually use this to fix any funky character output in my terminal. EDIT1: Also rebuilding the bash package with the updated ncurses fixes this error under Windows 8.1 as well. You'll see what code is sent as "erase". Backspace and arrow keys not working in (how to fix)vi/vim editor in ubuntu 14.04 /linux mint. How do I tell if a file does not exist in Bash? My backspace did nothing, when it should have sent a destructive delete. If the issue is only with the Backspace key, you can try and disable the filter or sticky keys. (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. So perhaps all packages depending on ncurses need re-compile? Why do small African island nations perform better than African continental nations, considering democracy and human development? Crtl C and V worked, Ctrl-Z did not, Z worked. Does Counterspell prevent from any further spells being cast on a given turn? Login from Ubuntu and give me output of commands: 1. echo $TERM 2. stty -a, While this didn't directly help me, since TERM was correctly set, it did help identify the problem. 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. 5 comments. 32 related questions found. It might help us identify where the problem lies. How do I print colored text to the terminal? To do this, press Fn+Esc keys to lock and unlock the funtions touchs. $ TERM=xterm-256color What sort of keyboard do you have? I had exactly this. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. 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. Backspace Not Working on VS Code's Bash Terminal, How Intuit democratizes AI development across teams through reusability. 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. It only takes a minute to sign up. Note that, @roaima @Kusalananda Thanks for pointing it out that OP didn't mention.