How to delete and replace last line in the terminal using bash?

The carriage return by itself only moves the cursor to the beginning of the line. That’s OK if each new line of output is at least as long as the previous one, but if the new line is shorter, the previous line will not be completely overwritten, e.g.: $ echo -e “abcdefghijklmnopqrstuvwxyz\r0123456789” 0123456789klmnopqrstuvwxyz To actually … Read more

Xcode duplicate/delete line

To delete a line: Ctrl–A to go to the beginning of the line, then Ctrl–K to delete it, and another time Ctrl–K to remove the empty line. (I do not use Xcode very often, but I’m used to that in Emacs and other text inputs with Emacs-like bindings, and it seems to work in Xcode … Read more

HTML5 canvas ctx.fillText won’t do line breaks?

If you just want to take care of the newline chars in the text you could simulate it by splitting the text at the newlines and calling multiple times the fillText() Something like http://jsfiddle.net/BaG4J/1/ var c = document.getElementById(‘c’).getContext(‘2d’); c.font=”11px Courier”; console.log(c); var txt=”line 1\nline 2\nthird line..”; var x = 30; var y = 30; var … Read more

Draw a connecting line between two elements [closed]

jsPlumb is an option available that supports drag and drop, as seen by its numerous demos, including the Flowchart demo. It is available in a free Community edition and a paid Toolkit edition. The Toolkit edition wraps the Community edition with a comprehensive data binding layer, as well as several UI widgets for building applications … Read more

How to do multiple line editing?

Press alt + shift + A to Toggle block selection (Toggle block / column selection in the current text editor), this will let you write vertically in eclipse, then you can easily do this. Go to Window->Preferences. Find for binding in text box surrounded by red box.

Set line spacing

Try the line-height property. For example, 12px font-size and 4px distant from the bottom and upper lines: line-height: 20px; /* 4px +12px + 4px */ Or with em units line-height: 1.7em; /* 1em = 12px in this case. 20/12 == 1.666666 */

Remove empty lines in text using Visual Studio or VS Code

Since Visual Studio 2012 changed its regex syntax, the original answers by Ala translate into the following in VS 2012: Remove single blank lines Old: ^:b*$\n New: ^(?([^\r\n])\s)*\r?$\r?\n Visual Studio 2013 (thanks to BozoJoe and Joe Johnston): ^\s*$\n Remove double blank lines Old: ^:b*\n:b*\n New: ^(?([^\r\n])\s)*\r?\n(?([^\r\n])\s)*\r?\n Rolls right off your tongue. Here is the conversion … Read more