bash backspace not working

By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The space you're seeing is the space that was supposed to stomp on the previous character. Look around putty's options menu for a "send hard reset" option as well. Thanks! 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' Acidity of alcohols and basicity of amines. Rebuild bash can fix the problem. Clearly this is a regression in or triggered by ncurses 6.1; the changelog mentions some changes to xterm-256color. (Solved! @Cyrus My Backspace works as I want it deletes last character always, even for this script from question without. This simple comment is certainly the best solution I have seen to this. Even am stuck on the same issue and from minty also backspace functionality is not working. Print some odd charachters? Your answer could be improved by explaining why your solution correctly would resolve it for the user in the question. Render Bokeh plots in Flask app hosted on Heroku 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. command but not successfully. Alternatively, just dont go full-width with your screen. Why do many companies reject expired SSL certificates as bugs in bug bounties? You can check what control characters the system uses with the stty command. Hmm ok scratch that, for some reason one of the updates had deleted the fstab file, after recreating it it worked again. Ctrlv + backspace produces nothing For me, the backspace code is the same as. Re: [LINUX5250] Backspace key - mail-archive.com You can check if there are any mappings set, and where they came from, like this: using "tab", "backspace" and "arrow" keys. - Hewlett Packard Enterprise key. How is an ETF fee calculated in a trade that ends in less than a year? Up/down/left/right arrows while in less (/usr/bin/less) does seem to work correctly. Doing your suggested change results in backspace working for both. Ok, I had this issue with manually updating a Cygwin install. It is useful when the physical keyboard has stopped working well. Thus, you should try one or all of them to get the key working again. However, this shortcut is implemented by the X server and may not work if X hangs in some ways. xterm-256color ether@jolteon MSYS /w Okay, yeah, I didn't know of this issue. I'm guessing this is happening in the shell. Asking for help, clarification, or responding to other answers. with stty erase ^H or stty erase ^? Use the following command in SQL*PLUS : !stty erase <backspace> but instead of the <backspace> statement, simply press the backspace button and hit return with what it gives you. Keep in mind that we may receive commissions when you click our links and make purchases. Thanks @Tom for your link that fixed the issue for me. You have these five options below available to chose from. Instead need to find why it happen. So, after ssh to unix host (it doesn't depend debian it or other host) set the TERM variable according to your terminal. Why doesn't the backspace key work in insert mode? If there are any new updates, Windows 10 / 11 will be installing them. Thanks. If so, how? Console applications read ASCII sequences, not keysyms. Disconnect between goals and daily tasksIs it me, or the industry? Ok thats a bit simpler, but wont it affect other sources to remove the hardening ? (Even though this behavior is unsafe ). This may seem strange, but the Linux console emulates a VT100 terminal, and this is the way things work in that realm. Just wondering why the backspace key does not work within SQL*Plus? This malfunctioning means the issue lies in the keyboard driver. 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. 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. in my .bashrc file, and use some other terminal to access the server, it often ends up wrong. The consent submitted will only be used for data processing originating from this website. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? Filter keys are useful for easier typing than normal by deterring the keyboard from focusing on repeated or brief strokes. I usually use this to fix any funky character output in my terminal. Looks like the remote host does not support tmux-256color, the TERM value sent by tmux. To avoid this, use VT100.backarrowKey: false instead, so: (see also https://wiki.archlinux.org/index.php/Xterm#Fix_the_backspace_key). command line - Backspace, Tab, Del and arrow keys not working in to your account. 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. I cant reproduce issue on my computer. Asking for help, clarification, or responding to other answers. Is there a proper earth ground point in this switch box? How is an ETF fee calculated in a trade that ends in less than a year? Mutually exclusive execution using std::atomic? So Backspace producing space on command line #597 - GitHub 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. Left and right arrows at the shell prompt don't skip chars as expected, but ctrl-v and then pressing an arrow key does print a correct (I think) string, e.g. Hope this helps someone. TERM variable in source I tried ssh from cygwin (in windows) to Debian. 4 Ways to Recover From a Crashed or Frozen X Server on Linux 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? Reboot your laptop or PC so that Windows can reinstall the keyboard automatically. This is also the case with the Sticky key. To add it to bashrc, type following in your terminal: go to command palette and select open shortcut key words go to this file and delete all data in this file. And when I press Ctrl + backspace the output is ^H. They don't have a public issue tracker. Continue with Recommended Cookies. There is discussion here and here but it probably only gets resolved if lots of people email github support. 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. Is there a single-word adjective for "having exceptionally strong moral principles"? They are easy to follow and have both basic and advanced measures. This is the solution to try if the Backspace key of the on-screen keyboard does not function. I also know of other people bumping into this issue, which, again, is quite a dealbreaker. Apparently it was fixed for them after bash was updated, but I don't know it it was just rebuilt or maybe something else. In the terminal, press Ctrl + v and press your backspace. with stty erase ^H or stty erase ^? How do I check if a directory exists or not in a Bash shell script? 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. The backspace doesn't work in the bash terminal of VS code. Say it is ^H . Did you know that windows 7, 8, and 10 can troubleshoot your keyboard? Something tells me we should hold off on this version untill it becomes more stable. And what the value of TERM you have tried? Your backspace key may be broken due to a bad mapping which has been loaded into Vim. How to check if a string contains a substring in Bash. I know it is strange. @whtyger this worked for this script. Do I need a thermal expansion tank if I already have a pressure tank? Related Posts. Would you mind sharing your build procedure? I noticed this using gVim in Windows. Also the backspace key works perfectly fine on Git Bash. Note that, @roaima @Kusalananda Thanks for pointing it out that OP didn't mention. Not working means when I tap the backspace it prints a white space in the terminal. I'd like to fix this frequent problem where the shell on a remote server thinks my terminal's backspace key is ^? 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 . The corrupted association between windows 10 and your physical keyboard is the reason why your Backspace key has stopped working. Is it known that BQP is not contained within NP? To update Windows 10 / 11, you should check for Windows Update in Settings. Turning off the filter keys will discard the risk of all probable interruptions to the keyboards overall functionality, which may fix the Backspace issue. linux - Backspace, Tab not working in terminal (using ssh) - Unix Allow the utility to complete the scan and then follow the instructions. It's worth noting that you aren't getting "a space": It's failing to move the cursor back to erase the character. Now that you've sorted out the Backspace key issue in the Linux terminal, you can really get to work. In my case backspace was not at all working after creating blank ~/.vimrc. At times, your keyboard is greatly influenced by these keys. You may have to check the "Hide Obsolete" checkbox for term to appear in the search. Share Improve this answer Follow answered Aug 23, 2010 at 6:39 CarpeNoctem 2,407 4 23 32 Add a comment Your Answer Confirm it fixes the crash for me, thanks. Thus, you need to replace the keyboard. For more information regarding what export TERM=xterm does you can check the following answer. If that is not the issue: Open the Settings App Go to Update & Security - Troubleshoot Run the Keyboard troubleshooter If that does not resolve this for you Open Device Manager Expand the Keyboards section Right click your keyboard and choose 'Uninstall' Then restart your PC ___________________________________________________________________ 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. 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, del, arrow keys not working with interactive programs in Tilda, In SSH Terminal, I can't type any character. /usr/share/terminfo/r/ . I had a custom installed ncurses, that I removed. What's the difference between a power rail and a signal line? This was the reason in my case.. for that particular user. My terminfo folder was entirely missing. Most of us are aware of the on-screen keyboard or the virtual keyboard that Windows operating system provides. Now it does the 'usual' backspace. Problem with finding FILE strict is solved yesterday. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? 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. Vi/Vim - Backspace Not Working - ShellHacks Does Counterspell prevent from any further spells being cast on a given turn? How to match a specific column position till the end of line? Here's how you can easily remediate this issue. NOTE: this folder might be different from yours depending on the installation. You can fix the Tab issue with the same as above. A lot of older computer terminals used a different control character for Backspace than today, using "Ctrl + H.", Modern terminals use "Ctrl + ?" The Backspace key isn't something you normally think about too much, but sometimes you might find it doesn't work correctly in the terminal, especially when logged in to a remote machine, echoing "^H" instead of erasing what you've typed. The backspace works on the cmd terminal of VS code though. Is this possible? Bash, how to globally fix ^H and ^? Now, you may have thought that something is wrong with Chrome or some malware has done its wicked job. I got linux on my PC and prefer the tcsh shell. Luckily, the problem is rather easy to fix. Similarly, try using the same problematic keyboard with another laptop or PC. If that happens, the last line of text will not be passed to the body of the loop and will not be processed. BackSpace and Delete Configuration for Linux (VT, xterm, bash, tcsh My backspace key and zsh vi-mode are broken on command line when i use tmux. It resets all the special characters to their default values. You can check your TERM by running echo $TERM, but before you do this I suggest you restart your vscode as you have already set the TERM by using the command. Verify that the remote host shell TERM setting matches your terminal's term setting (localhost) and that the remote host supports the TERM setting. This will add it to the .bashrc and everything may work nicely! If there are problems with cygwin, I even tried it from ubuntu terminal, but same problem. You may have to edit several configuration files to tell all of the programs involved precisely what you want. pacman -U /var/cache/pacman/pkg/ncurses-6.0.20170708-2-x86_64.pkg.tar.xz. This deletes the but I am getting: > ls foo.c ls: cannot access 'foo.c'$'\303': No such file or directory. I tried the following with and without a ~/.bashrc file: Pressing few chars and then a backspace seems to print a space. . ether@jolteon MSYS /w Backspace and delete problems | Vim Tips Wiki | Fandom Thanks for contributing an answer to Ask Ubuntu! If the above fail to work, the last resort, you may interrupt the current line to start it over in the new line. (2022 Edition), Can You Use Zoom on Firestick? 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. 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. Connect and share knowledge within a single location that is structured and easy to search. Click the Options button and enable the Control + Alt + Backspace check box under Key sequence to kill the X server. If you have tried all the above-mentioned fixes and nothing works then chances are that its a software-specific issue. If it was never working then try what tylerl suggested. Trying to delete characters in insert mode with the backspace key sometimes doesn't seem to work. Look in the archives - it has come up before. Go to Start , then select Settings > Ease of Access > Keyboard, and turn on the toggle under Use the On-Screen Keyboard. to my .bashrc but this only fixed the issue 80% of the time. I tried googling but didn't find what I was looking for! rev2023.3.3.43278. in my .bashrc file, and use some other terminal to access the server, it often ends up wrong. Browse other questions tagged. indent autoindent eol () start CTRL-W CTRL-U . To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. and sometimes it thinks it is ^H, and happens to be incorrect and outputs the wrong character when I press backspace. This also resolved a similar issue I was having with the cursor keys. I had exactly this. Super User is a question and answer site for computer enthusiasts and power users. I don't want to apply a bandaid by setting TERM variables to something other than what was working before my mishap. The reason for this is because many Linux distro's ship with pre-made vimrc files which set some common options. Doesn't work for me, apparently the cache was cleaned at some stage. Manage Settings Do new devs get fired if they can't solve a certain bug? Ive seen a few people struggling with using the backspace key in Outlook (Exchange and Outlook.com). 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. https://ci.appveyor.com/project/zklhp/msys2-packages/build/1.0.16/artifacts. Most application will expect that you already have the emulator set to something compatible such as xterm or linux. Then click Uninstall device. I did nothing special. On a Macbook, this key is known as the Delete key. PDF Linux Backspace/Delete mini-HOWTO - mirror.facebook.net Added on Nov 4 2000. Does a summoned creature play immediately after being summoned by a ready action? Following change made it work, Found this at How to Connect Two Monitors To One Computer With One VGA Port? The Backspace key is a popular shortcut in Chrome. Solved: Hi I am connecting my HP-UX thru Telnet using putty. 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. I am using tmux to force the error since it uses an relatively uncommon terminal config. But the terminal does seem to interpret \b (backspace) and \e[D (move one column left) correctly. What I don't understand though is why my shell handles backspace as expected, but reading from stdin in my app does not. 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. Hope there are no side-effects. I'll wait patiently for a release to get to pacman. 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. Google has wittingly removed this shortcut, beginning from version 52. Space instead of Backspace in Cygwin Bash Problem - Matthias Kerstner I am using urxvt and on arch you need to install rxvt-unicode-terminfo to fix this particular issue, My backspace character is some special symbol something like an inverted triangle. Why does backspace not work within SQL*Plus? - Oracle Forums Backspace and arrow keys not working in (how to fix)vi/vim editor in ubuntu 14.04 /linux mint. What's the difference between a power rail and a signal line? It might help us identify where the problem lies. 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] To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I banged the keyboard and about three cigarettes worth of ash fell out. http://linux-journal.blogspot.com/2005/04/fix-vim-backspace-doesnt-work.html, Worked for me: In the Windows command prompt, type. I checked my /var/log/pacman.log which ended with: So, somewhere between 2018-01-15 and 2018-01-30 this regression happened. rev2023.3.3.43278. Once you press [ENTER] you should be able to press your [BACKSPACE] key and have it backspace/delete whatever you typed. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? How do I get to know the value of TERM? Phil. Bash shell: how to reconcile portable configuration files and GUI terminal start-up types (login or interactive)? 2) Type devmgmt.msc and press Enter. What would work is to use two backspaces, which gives the non-intuitive correct result: [rendering still fine] If you are wondering how to fix backspace key on windows 10/11 this should be the very first thing to try. It worked. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The best answers are voted up and rise to the top, Not the answer you're looking for? backspace makes a ^H character - LinuxQuestions.org TERM=blahblah . I just rebuilt bash from current msys2-packages and installed it and the issue seems gone. Why is this sentence from The Great Gatsby grammatical? 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. $ TERM=xterm-256color Sign in Thanks for contributing an answer to Stack Overflow! 3) Right-click on your keyboard software in the Keyboards section. But only on Windows 8.1 using TERM=screen-256color or TERM=xterm-256color. Either the last space will get erased (backspace functioning correctly, delete. Disconnect between goals and daily tasksIs it me, or the industry? When I ssh into another machine with Debian with my account(with sudo permissions), my backspace key generates some awkward symbols on pressing. If the Backspace key on the virtual keyboard is not working, it indicates that you need to update the keyboard driver or get rid of the windows 10 system error, if any. FWIW, I tried rebuilding bash locally (first time, so hopefully it's OK) and it seems to fix the issue. How to backspace in vim? Explained by FAQ Blog It does exactly the same thing as the backspace key. Backspace Not Working on VS Code's Bash Terminal, How Intuit democratizes AI development across teams through reusability. In short, it is available for use when your keyboard is not available. Bulk update symbol size units from mm to map units in rule-based symbology. 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.. 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. Not the answer you're looking for? host was set to rxvt-unicode-256color. bash terminal With over 10 pre-installed distros to choose from, the worry-free installation life is here! You should be able to configure what exactly is sent when pressing the Backspace key in your terminal emulator's settings. After it's enabled, you can press Ctrl+Alt+Backspace to immediately restart your X server. All keys seems work correctly for me. US, UK etc. (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. You should see something like: 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. You can use set -o gmacs or set -o emacs if you want it to act like emacs, that means like bash default (you can also write set -o vi in bash so that it acts like the vi editor : ( Furthermore, with this mode, backspace is control-H 3) You can write export VISUAL=gmacs (or emacs) in your .profile and dot it again or reconnect. 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. 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. First, enter CTRL + V ALT + CyrChar in your shell. 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. Switch to the Compatibility tab and you should get these options: Now you can change the Backspace key generates: setting. If you hit ^L you can see that backspace IS working. That should hopefully solve your issue! This would be more helpful if it explained a little more and how to change it, but it was the problem I had. The reason why Google did so was several complaints of losing data unintentionally as a result of pressing Backspace while not typing. 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. (Only after rebuilding bash): bash aborts after setting TERM to some dummy name, e.g. How Much Storage Should a Gaming PC Have in 2022? If you preorder a special airline meal (e.g. What terminal are you using? 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. [rendering fine] To do this, press Fn+Esc keys to lock and unlock the funtions touchs. If the issue is only with the Backspace key, you can try and disable the filter or sticky keys. How to Get Ctrl-Backspace to Delete a Word in Vim Within Gnome-Terminal This one fixed it for me. 31.3k 9 80 107. So, if this does not work, it is worth trying out other below solutions. ```. 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. It's definitely a problem of tcsh since in any other application the backspace works fine. 6,402, 678 Maybe key mapping. vegan) just to try it, does this inconvenience the caterers and staff? Try to install the Terminal Emulator Mintty (http://code.google.com/p/mintty/). 1) I am not able to use "tab key" for auto completion of the command. After connecting from Fedora to an OpenWrt host with ssh the remote bash 78.1k 28 392 615. answered Sep 30, 2015 at 11:52.

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