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How to extract the first two characters of a string in shell scripting?

...two characters, short will be identical to it. This in-shell method is usually better if you're going to be doing it a lot (like 50,000 times per report as you mention) since there's no process creation overhead. All solutions which use external programs will suffer from that overhead. If you also...
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No route matches [GET] /assets

...nment. I ran RAILS_ENV=production rake assets:precompile which generated all of my assets in /public/assets. The problem is that when I start my app w/ RAILS_ENV=production rails s thin I get: ...
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What is a pre-revprop-change hook in SVN, and how do I create it?

... Basically it's a script that is launched before unversioned property is modified on the repository, so that you can manage more precisely what's happening on your repository. There are templates in the SVN distrib for different h...
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Changing Font Size For UITableView Section Headers

...wForHeaderInSection:(NSInteger)section { UILabel *myLabel = [[UILabel alloc] init]; myLabel.frame = CGRectMake(20, 8, 320, 20); myLabel.font = [UIFont boldSystemFontOfSize:18]; myLabel.text = [self tableView:tableView titleForHeaderInSection:section]; UIView *headerView = [[UIV...
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Calling a function when ng-repeat has finished

What I am trying to implement is basically a "on ng repeat finished rendering" handler. I am able to detect when it is done but I can't figure out how to trigger a function from it. ...
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Can I use a function for a default value in MySql?

...eral constant default values. CREATE TABLE t1 ( uuid_field VARCHAR(32) DEFAULT (uuid()), binary_uuid BINARY(16) DEFAULT (UUID_TO_BIN(UUID())) ); share | improve this answer |...
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How do you run a single test/spec file in RSpec?

...tests — for the one file I'm editing, for example. rake spec executes all the specs. My project is not a Rails project, so rake spec:doc doesn't work. ...
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How do RVM and rbenv actually work?

I am interested in how RVM and rbenv actually work. 5 Answers 5 ...
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PyLint “Unable to import” error - how to set PYTHONPATH?

...le works better for me: [MASTER] init-hook="from pylint.config import find_pylintrc; import os, sys; sys.path.append(os.path.dirname(find_pylintrc()))" Note that pylint.config.PYLINTRC also exists and has the same value as find_pylintrc(). ...
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Changing the color of an hr element

... Why even bother with the border at all? Why not just give it a background-color and be done with it? Edit: nvm, I didn't see the answer on browser compatibility. – Lawyerson May 26 '16 at 12:39 ...