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How to insert newline in string literal?
...c: My final sentence explains why it can't be a literal escape - you can't include it in the metadata for a string constant, because it's not a constant value.
– Jon Skeet
Nov 3 '10 at 9:50
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How to get a thread and heap dump of a Java process on Windows that's not running in a console
...he process id on windows and unix), or using jps.
Both jstack and jps are include in the Sun JDK version 6 and higher.
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How to list all users in a Linux group?
...minded me that getent passwd will return a list of all users on the system including ones from LDAP/NIS/etc., but getent group still will still miss users that are members only via the default group entry, so that inspired me to write this quick hack.
#!/usr/bin/perl -T
#
# Lists members of all gr...
Gcc error: gcc: error trying to exec 'cc1': execvp: No such file or directory
...executables to complete the processing of the input, and cc1 is not in the included path.
On shell type whereis cc1. If cc1 is found, it's better go ahead and create a softlink in the directory of gcc; otherwise, cc1 is not installed and you have to install gcc-c++ using the package manager.
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...th controls and styles that aren't available in the current nuget version, including:
Datagrids:
Clean Window:
Flyouts:
Tiles:
The github repository is very active with quite a bit of user contributions. I recommend checking it out.
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&& (AND) and || (OR) in IF statements
...iour is called short-circuit evaluation and is a feature in many languages including Java.
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Remove an entire column from a data.frame in R
... columns
data <- data[, ! names(data) %in% cols.dont.want, drop = F]
Including drop = F ensures that the result will still be a data.frame even if only one column remains.
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Using openssl to get the certificate from a server
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The easiest command line for this, which includes the PEM output to add it to the keystore, as well as a human readable output and also supports SNI, which is important if you are working with an HTTP server is:
openssl s_client -servername example.com -connect exa...
How to document class attributes in Python? [closed]
... I don't know when this was introduced, but Sphinx 1.2.2 seems to include attribute docstrings in the generated documentation.
– jochen
Jul 19 '14 at 12:09
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filters on ng-model in an input
...n is performed in both directions.
See this other answer for more details including a link to jsfiddle.
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