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Error handling in Bash

...o handle errors in Bash? The best example of handling errors I have found on the web was written by William Shotts, Jr at http://www.linuxcommand.org . ...
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__getattr__ on a module

How can implement the equivalent of a __getattr__ on a class, on a module? 8 Answers ...
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Check if image exists on server using JavaScript?

Using javascript is there a way to tell if a resource is available on the server? For instance I have images 1.jpg - 5.jpg loaded into the html page. I'd like to call a JavaScript function every minute or so that would roughly do the following scratch code... ...
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Git commits are duplicated in the same branch after doing a rebase

...ice. The Pro Git book that you linked basically explains this exact situation. The inner workings might be slightly different, but here's how I visualize it: C5 and C6 are temporarily pulled out of dev C7 is applied to dev C5 and C6 are played back on top of C7, creating new diffs and therefore ne...
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How to prevent line break at hyphens on all browsers

We have a ckeditor on our CMS. Our end users will input some long articles via that ckeditor. We need a way to prevent line break at hyphens on those articles. ...
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mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get t

In my local/development environment, the MySQLi query is performing OK. However, when I upload it on my web host environment, I get this error: ...
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Is calculating an MD5 hash less CPU intensive than SHA family functions?

Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip. ...
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Android Use Done button on Keyboard to click button

...app I have a field for the user to input a number. I have the field set to only accept numbers. When the user clicks on the field it brings up the keyboard. On the keyboard (on ICS) there is a done button. I would like for the done button on the keyboard to trigger the submit button i have in my app...
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How to decide font color in white or black depending on background color?

... Building on my answer to a similar question. You need to break the hex code into 3 pieces to get the individual red, green, and blue intensities. Each 2 digits of the code represent a value in hexadecimal (base-16) notation. I won't ...
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Take a full page screenshot with Firefox on the command-line

I'm running Firefox on a Xvfb in a VPS. What I want to do is to take a full page screenshot of the page. 6 Answers ...