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sed error: “invalid reference \1 on `s' command's RHS

I run several substitution commands as the core of a colorize script for maven . One of the sed commands uses a regular expression which works find in the shell as discussed here . The current (not working) implementation can be found here . ...
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Random record from MongoDB

... race conditions are valid, but for collections where neither matters (one-time server-side batch extract in a collection where records aren't deleted), this is vastly superior to the hacky (IMO) solution in the Mongo Cookbook. – Michael Moussa Sep 5 '12 at 16:...
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Hiding the scroll bar on an HTML page

...handle all the scrolling. If you do not also set focus to an element every time you scroll for the user, then your AT user will be completely lost. Also, your user has now lost all fine-tuned control over what (s)he sees. Very poor UX to take over scrolling for your user. – Shi...
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Converting string to title case

I have a string which contains words in a mixture of upper and lower case characters. 23 Answers ...
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How to remove leading and trailing zeros in a string? Python

I have several alphanumeric strings like these 6 Answers 6 ...
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Automatically resize jQuery UI dialog to the width of the content loaded by ajax

...e they supply a workaround of placing the dialog('open') statement in a setTimeout to fix the problem. Here is the contents of my head tag: <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script> <script type="text/javascript" s...
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Batch renaming files with Bash

How can Bash rename a series of packages to remove their version numbers? I've been toying around with both expr and %% , to no avail. ...
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Regex Match all characters between two strings

Example: "This is just\na simple sentence". 14 Answers 14 ...
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Count number of records returned by group by

... This down side of this solution is that it gives you the answer multiple times (for each combination of column_1, column_2, column_3, column_4). This may or may not be a significant side-effect, depending on how you process the results. – cartbeforehorse Feb...
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what is the unsigned datatype?

I've seen this unsigned "typeless" type used a couple of times, but never seen an explanation for it. I suppose there's a corresponding signed type. Here's an example: ...