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urlencode vs rawurlencode?
...is the encoding described in » RFC 3986 for protecting literal characters from being interpreted as special URL delimiters, and for protecting URLs from being mangled by transmission media with character conversions (like some email systems).
Note on RFC 3986 vs 1738. rawurlencode prior to php 5...
Running Bash commands in Python
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Don't use os.system. It has been deprecated in favor of subprocess. From the docs: "This module intends to replace several older modules and functions: os.system, os.spawn".
Like in your case:
bashCommand = "cwm --rdf test.rdf --ntriples > test.nt"
import subprocess
process = subprocess....
How do I capture the output into a variable from an external process in PowerShell?
...t $output = netdom ..., as detailed below.
Fundamentally, capturing output from external programs works the same as with PowerShell-native commands (you may want a refresher on how to execute external programs; <command> is a placeholder for any valid command below):
$cmdOutput = <command&g...
Increasing the maximum number of TCP/IP connections in Linux
...ort range defines the maximum number of outbound sockets a host can create from a particular I.P. address. The fin_timeout defines the minimum time these sockets will stay in TIME_WAIT state (unusable after being used once).
Usual system defaults are:
net.ipv4.ip_local_port_range = 32768 61000
n...
How do you implement a Stack and a Queue in JavaScript?
....shift(); // queue is now [5]
alert(i); // displays 2
taken from "9 javascript tips you may not know"
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Example images for code and mark-up Q&As [closed]
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Here are some example images for common use, mostly from existing answers on SO.
Icons
Simple Geometric shapes generated using Java as originally seen in this answer. It includes a Java based interface that defines the URLs and makes them easy to access.
Details: 32x32 p...
Download single files from GitHub
...b.com/downloads/user/repository/filename
Note that the URLs given above, from the links on github.com, will redirect to raw.githubusercontent.com. You should not directly use the URL given by this HTTP 302 redirect because, per RFC 2616: "Since the redirection might be altered on occasion, the cli...
What is RSS and VSZ in Linux memory management
.... It does not include memory that is swapped out. It does include memory from shared libraries as long as the pages from those libraries are actually in memory. It does include all stack and heap memory.
VSZ is the Virtual Memory Size. It includes all memory that the process can access, includi...
what is the difference between ?:, ?! and ?= in regex?
..."ab".
The difference between ?: and ?= is that ?= excludes the expression from the entire match while ?: just doesn't create a capturing group. So for example a(?:b) will match the "ab" in "abc", while a(?=b) will only match the "a" in "abc". a(b) would match the "ab" in "abc" and create a capture ...
...![endif]-->
Note: These conditional comments are
no longer supported from IE 10 onwards.
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