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Concatenate strings in Less

... Use Variable Interpolation: @url: "@{root}@{file}"; Full code: @root: "../img/"; @file: "test.css"; @url: "@{root}@{file}"; .px{ background-image: url(@url); } share | ...
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django syncdb and an updated model

... If you run Django with Apache and MySQL, restart apache after making migration with makemigrations. share | improve this answer | fol...
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What is the difference between a directory and a folder?

...ditor I could found two sub-keys, Folder and Directory, under HKEY_CLASSES_ROOT. I didn't know the difference until I created some values manually in registry and observed the differences of context menu items. If I create a node under HKEY_CLASSES_ROOT\Folder\shell only, I found that it appears in...
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Rollback to an old Git commit in a public repo

...nges to the whole tree. You should execute this command in the git project root. If you are in any sub directory, then this command only changes the files in the current directory. Then commit and you should be good. You can undo this by git reset --hard that will delete all modifications from ...
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What's the difference between the data structure Tree and Graph?

...recursive pointer-based structure. The representation is not unique for unrooted trees, but that is immaterial. – j_random_hacker Jul 7 '14 at 9:42 2 ...
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How to drop a table if it exists?

...MS servers provide, at least, basic INFORMATION_SCHEMA support, including: MySQL, Postgres, Oracle, IBM DB2, and Microsoft SQL Server 7.0 (and greater). share | improve this answer | ...
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Is there an S3 policy for limiting access to only see/access one bucket?

...ckets permission is that the recipient of this policy can see all of your (root's) buckets. There is no data disclosure directly, but there might be sensitivity/confusion around bucket names. It is feasible to remove this particular permission and things should still work (although "s3cmd ls" etc wi...
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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?

...but not least the sample code from media fire. Install node.js+npm(as non root) First you should(if you have not done this yet) install node.js+npm in 30 seconds (the right way because you should NOT run npm as root): echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc . ~/.bashrc mkdir ~...
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

... This assumes root access is available – Lionel Nov 7 '11 at 4:18 20 ...
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Excluding directories in os.walk

...ited by os.walk: # exclude = set(['New folder', 'Windows', 'Desktop']) for root, dirs, files in os.walk(top, topdown=True): dirs[:] = [d for d in dirs if d not in exclude] From help(os.walk): When topdown is true, the caller can modify the dirnames list in-place (e.g., via del or slice assign...