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Ruby: What is the easiest way to remove the first element from an array?
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edited May 26 '14 at 11:15
answered Sep 1 '10 at 7:05
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Generic htaccess redirect www to non-www
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RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
Same as Michael's except this one works :P
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sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
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Ubuntu ships with GNU sed, where the suffix for the -i option is optional. OS X ships with BSD sed, where the suffix is mandatory. Try sed -i ''
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In Vim is there a way to delete without putting text in the register?
Using Vim I often want to replace a block of code with a block that I just yanked.
25 Answers
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how to make a whole row in a table clickable as a link?
...ecially ones that do not use jquery.
Author's note II:
Preserved for posterity but surely the wrong approach in 2020. (Was non idiomatic even back in 2017)
Original Answer
You are using Bootstrap which means you are using jQuery :^), so one way to do it is:
<tbody>
<tr class='clickable-...
how to use sed, awk, or gawk to print only what is matched?
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My sed (Mac OS X) didn't work with +. I tried * instead and I added p tag for printing match:
sed -n 's/^.*abc\([0-9]*\)xyz.*$/\1/p' example.txt
For matching at least one numeric character without +, I would use:
sed -n 's/^.*abc\([0-9][0-9]*\)xyz.*$/\...
Retrieve only the queried element in an object array in MongoDB collection
....color": "red"}, {_id: 0, 'shapes.$': 1});
MongoDB 3.2 Update
Starting with the 3.2 release, you can use the new $filter aggregation operator to filter an array during projection, which has the benefit of including all matches, instead of just the first one.
db.test.aggregate([
// Get just t...
How to remove a file from version control without deleting it?
...eep-local command-line option. This removes the file from version control without removing it from your filesystem.
$ svn rm --keep-local my_important_file
Note: The --keep-local only affects the svn rm of your copy. Other users may have their own local copy of the file deleted unless there is a ...
Python Process Pool non-daemonic?
Would it be possible to create a python Pool that is non-daemonic? I want a pool to be able to call a function that has another pool inside.
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How do you remove all the options of a select box and then add one option and select it with jQuery?
...you remove all the options of a select box, then add one option and select it?
24 Answers
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