typewriter backspace

Used to execute scripts under Linux do not pay attention to the wrong content to be deleted when the ^h always appear, I did not know the truth before I can only run the script again, and later found that there are solutions, so record.^h is not the H key meaning, is backspace. The main thing is that when your terminal backspace has a problem, it needs to be set.There are two ways to resolve this:1. To use

The main post that needs to be deleted in the log file statistics, and the log file is a tab (BACKSPACE) character separated; Suppose the log file name is Delete.log. Save the format and save the data as follows, Delete Date Post Type (11 main posts, 12 for replies) Post ID operator ID 2011-11-01 00:05 12 71163578 11530892011-11-01 00:19 11 71163800 1343792011-11-01 00:19 12 71163801 1343792011-11-01 00:20 11 71151662 20645612011-11-01 00:42 11 711

In Linux use Sqlplus you will find: Backspace key can not be used normally (garbled), on the flip button can not normally display the historical function, very annoying! In order to let the backspace bar and the rollover key in Sqlplus normal play its role, we must install a software-rlwrap 1. First, download the installation package from http://utopia.knoware.nl/~hlub/uck/rlwrap/and upload it to the Linu

Newly installed Ubuntu, using VI to edit the file, found that delete can not be deleted as normal text.Workaround, New installation vim solves the problem.Reference article: http://blog.sina.com.cn/s/blog_7d0c2fed01010zbi.htmlThe problem is that the new system is directly installed VI, not installed VIM. Because VI is not able to press backspace directly to delete characters, so when you use backspace key t

This article illustrates the method that jquery implements to prevent the backspace bar from returning. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: Backspace not available in browser $ (document). KeyDown (function (e) { var keyevent; if (e.keycode==8) { var d=e.srcelement| | E.target; if (d.tagname.touppercase () = = ' INPUT '

In the newly installed Oracle, we use Sqlplus will find very crappy, not only the BACKSPACE key is not good to use, the direction of the key can not recall history, there are several solutions.1. You can use the Ctrl+backspace key to force output input errors, you can also export Stty erase ^h, of course, this is only a temporary method, want to see the following once and for all. 2. Edit the bash_profile f

Tags: environment inf div using ls-l delete pictures etc TTYDelete IssueInstall Kalilinux When you use a normal user, pressing the BACKSPACE key does not implement the delete function.There are two ways to solve this problem.A change of shortcut keys:Use the Ctrl+backspace key combination to implement the DELETE function Ctrl + BACKSPACESecond, change the environment variable (execute the following command)

Problem: Connect to the spark cluster remotely with SECURECRT, start Spark-shell but find the wrong command but can't delete it with backspace key.Workaround:The first step:Select the Options button in the SecureCRT menu bar and select "Session Options" in the pop-up optionStep Two:In the popup dialog, select "Emulation" on the left, then "emulation" and select "Linux" in the right terminal (terminal) selection.Step Three:After you save the settings,

Install python3.4 FirstDownload Wget-c https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgzUnzip the tar zxvf python-3.4.3.tgzCD Python-3.4.3./configure--prefix=/opt/python #因为centos自带python, in order not to affect the original system, I am here to install additional to the new directoryMake installLn-s/opt/python/bin/python3.4/usr/bin/python3 #软连接到系统path所指向的一个目录中, making it a system commandLn-s/OPT/PYTHON/BIN/PIP3.4/USR/BIN/PIP3Ln-s/opt/python/bin/easy_install-3.4/usr/bin/easy_install3Insta

Equipped with the Spark cluster, first wrote two small examples with Pyspark, but found that the TAB key is not prompted, so the intention to go to Scala to try, in the Spark-shell under the hint, but found not to backspace, and the hint is not a copy, but the addition, so there is no way to write programs.Workaround:1. Open Session Options2. Terminal-emulation Select Linux in the terminal3. Map key Check two options4. This has been successful , but i

Below through the JavaScript code to implement the Web page screen backspace event, the input box is not shielded, the specific code is as follows: Document.onkeydown = function (e) { var code; if (!e) {var e = window.event;} if (e.keycode) {code = E.keycode;} else if (E.which) {code = E.which;} BackSpace 8; if ( (Event.keycode = 8) ((event.srcElement.type!= "text" event.src

Screen the right mouse button, CTRL + N, SHIFT+F10, F5 refresh, backspace key function KeyDown () { if ((Window.event.altKey) ((window.event.keycode==37) | |//Shielding ALT + Direction key ← (window.event.keycode==39))) {//Shielding ALT + Direction key → Alert ("You are not allowed to use ALT + arrow keys forward or back page!") "); Event.returnvalue=false; } * Note: This is not really shielding ALT + arrow keys, Because ALT + ARROW keys pop-up warn

may have used sqlplus people know that in the Sqlplus connection Oracle after the session interface is unable to use the arrow keys and backspace, this is a more troublesome point, often have a SQL write wrong, can not be modified to start again very troublesome, People who have used MySQL must not get used to it, but fortunately there are 2 useful tools available under Linux to solve this problem, they are rlwrap and ReadLine, Through the two tools t

Programme one:Problem:Ubuntu VI in the editing state of the arrow keys can not be used, as well as the grid key can not be deleted and so we are accustomed to some of the keys can not be used.Workaround:The vim full version can be installed, the keyboard is normal under the full version, and the VI command is also used after installation.Install Vim:Ubuntu is preinstalled with the Vim tiny version, and requires a vim full version. Execute the following statement to install the VIM full version:s

Programme one:Problem:Ubuntu VI in the editing state of the arrow keys can not be used, as well as the grid key can not be deleted and so we are accustomed to some of the keys can not be used.Workaround:The vim full version can be installed, the keyboard is normal under the full version, and the VI command is also used after installation.Install Vim:Ubuntu is preinstalled with the Vim tiny version, and requires a vim full version. Execute the following statement to install the VIM full version:$

Environment: VirtualBox4.1 + RedHat Linux 6 Question: Press the BACKSPACE key to appear the question mark As shown in the figure: Problem Analysis: Misuse of Reset command. Solve: Setting the environment variable (set in the text interface, which is similar to the Windows DOS interface): Under Bash, execute the following statement: $ stty Erase ^? or add Stty erase ^? to the. Bash_profile. Under CSH, execute the following statement: $ stty E

Java code function DisableF5 () { With (event) { //F5 and Ctrl+r if (keycode==116 | | (Ctrlkey keycode==82)) { Event.keycode = 0; Event.cancelbubble = true; return false; } } } Document.onkeydown = DisableF5; Java code function Document.onkeydown () { if ((event.keycode==8) | | //Mask BACKSPACE delete key (event.keycode==116) | | //Shielded F5 Refresh key (Event.ctrlkey event.keycode==82)) { //ctrl + R

ASP tutorial. NET textbox can only enter numbers, backspace, decimal point (only one decimal point and cannot be in first place) private void Textbox1_keypress (object sender, KeyPressEventArgs e){e.handled =! (Char.isnumber (E.keychar) | | | e.keychar = = (char) 8 | | | e.keychar = = '. ');if (!e.handled) (sender as textbox). Tag = (sender as textbox). text;//Record last correct input} private void textBox1_TextChanged (object sender, Event

The following is a JS fragment tested in Ie9,firebox 10.0.2: Copy Code code as follows: $ (document). KeyDown (function (e) { var doprevent; if (E.keycode = = 8) { var d = E.srcelement | | E.target; if (d.tagname.touppercase () = = ' INPUT ' | | d.tagname.touppercase () = = ' TEXTAREA ') { doprevent = D.readonly | | d.disabled; } Else Doprevent = true; } Else Doprevent = false; if (doprevent) E.preventdefault (); }); Code on how to determine the

Sometimes it's hard to use a read-only text box, can be found today, read-only text box has a flaw, when the mouse focus in the text box when the Back button (BackSpace), will be back to the previous page, the problem is a bit annoying, the user is not clear can input, If he sees a text box that wants to change something in it, click on it, and it's possible that all the data you've filled out will be lost. So write a method for everyone to put in wh