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How to delete history of last 10 commands in shell?
...06, then 1007 becomes 1006 and 1006 is deleted, then 1008 (became 1007) is now 1006 and gets deleted.
If I also wanted to delete the history delete command then it's a bit more complicated because you need to know the current max history entry.
You can get this with (there may be a better way):
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Tetris-ing an array
...ies, so in interpreted languages this will have a huge efficiency gain...
Now, if you want only full paths, we need to truncate to the last / character. So:
$prefix = preg_replace('#/[^/]*$', '', commonPrefix($paths));
Now, it may overly cut two strings such as /foo/bar and /foo/bar/baz will be...
How to write a bash script that takes optional input arguments?
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you need write to a regular variable to use the substitution
#!/bin/bash
NOW=$1
echo ${NOW:-$(date +"%Y-%m-%d")}
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Get to UIViewController from UIView?
... there a built-in way to get from a UIView to its UIViewController ? I know you can get from UIViewController to its UIView via [self view] but I was wondering if there is a reverse reference?
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Auto increment primary key in SQL Server Management Studio 2012
...nd your table right click on your table and select design from dropdown.
Now go Column properties below of it scroll down and find Identity Specification, expand it and you will find Is Identity make it Yes. Now choose Identity Increment right below of it give the value you want to increment in it...
how to remove css property using javascript?
...erty of an element using JavaScript ?
e.g. I have div.style.zoom = 1.2 ,
now i want to remove the zoom property through JavaScript ?
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Is JavaScript's “new” keyword considered harmful?
...eof foo) )
return new foo();
// constructor logic follows...
}
Now you can have the advantages of new without having to worry about problems caused by accidentally misuse. You could even add an assertion to the check if the thought of broken code silently working bothers you. Or, as some...
Git serve: I would like it that simple
I want to know how to simply publish over http = much like Mercurial 's hg serve! On the Windows/work box do this:
8 Answe...
Unlimited Bash History [closed]
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After many large, ugly iterations and weird edge cases over the years, I now have a concise section of my .bashrc dedicated to this.
First, you must comment out or remove this section of your .bashrc (default for Ubuntu). If you don't, then certain environments (like running screen sessions) will...
How to set timeout on python's socket recv method?
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It's better now, but I don't see where the answer was "explicitly rejected".
– nosklo
Apr 28 '10 at 18:31
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