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Shell script to delete directories older than n days

...+10 -exec rm -rf {} \; Explanation: find: the unix command for finding files / directories / links etc. /path/to/base/dir: the directory to start your search in. -type d: only find directories -ctime +10: only consider the ones with modification time older than 10 days -exec ... \;: for each suc...
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What does “#define _GNU_SOURCE” imply?

....g., #define _GNU_SOURCE is recommended to be "the very first thing in the file, preceded only by comments"). – Alexander Pozdneev Dec 6 '16 at 11:17 ...
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Pretty graphs and charts in Python [closed]

...matplotlib is not only interactive - you can actually save plot/chart to a file. For ex. PNG, PDF or SVG. – Timur Apr 12 '12 at 20:25 add a comment  |  ...
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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc

...re looking for is part of the index used to find the data the server will fetch the data right there, if you do a select * it will most likely have to do what is called a bookmark lookup, which requires an extra scan to find the rest of the underlying data, which you may not even need. ...
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Equivalent of String.format in jQuery

...ugh it and include the parts you want to continue using into a separate JS file. Or, you can port them to jQuery. Here is the format function... String.format = function() { var s = arguments[0]; for (var i = 0; i < arguments.length - 1; i++) { var reg = new RegExp("\\{" + i + "...
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Why Does OAuth v2 Have Both Access and Refresh Tokens?

...igates the risk of a long-lived access_token leaking (query param in a log file on an insecure resource server, beta or poorly coded resource server app, JS SDK client on a non https site that puts the access_token in a cookie, etc) ...
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How to install Java SDK on CentOS?

... After Installation: configuring iptables on centos 6.5 -> /etc/sysconfig/iptables -> -A INPUT -i eth0 -p tcp -m tcp --dport 8080 -m state --state NEW,ESTABLISHED -j ACCEPT – hpaknia Jan 18 '15 at 11:17 ...
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Creating C formatted strings (not printing them)

...ill run the danger that your strings gets truncated. When writing to a log file, that is a relatively minor concern, but it has the potential to cut off precisely the information that would have been useful. Also, it'll cut off the trailing endline character, gluing the next log line to the end of y...
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I want my android application to be only run in portrait mode?

... In Android Manifest File, put attribute for your <activity> that android:screenOrientation="portrait" share | improve this answer ...
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convert double to int

...at would work, but you'd usually just have using System; at the top of the file, at which point it could just be intVal = Convert.ToInt32(Math.Floor(dblVal)); – Jon Skeet May 1 '16 at 8:08 ...