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This command will save the open file with sudo rights :w !sudo tee % >/dev/null You can also map w!! to write out a file as root :cnoremap w!! w !sudo tee % >/dev/null

When writing macros that expand into forms that might involve grouping, it is worthwhile spending some time considering what grouping construction to expand into. For definition style forms, for instance, a define-widget macro that will usually appear as a top-level form, and that several defuns, d...

You can use npm install -g to install a package "globally." This is typically done to install an executable that you can add to your path to run. For example: npm install -g gulp-cli If you update your path, you can call gulp directly. On many OSes, npm install -g will attempt to writ...

Standard DateTime Formatting DateTimeForma­tInfo specifies a set of specifiers for simple date and time formating. Every specifier correspond to a particular DateTimeFormatInfo format pattern. //Create datetime DateTime dt = new DateTime(2016,08,01,18,50,23,230); var t = String.Format("{0...

SQL Server 2012 Returns a NVARCHAR value formatted with the specified format and culture (if specified). This is primarily used for converting date-time types to strings. Parameters: value. An expression of a supported data type to format. valid types are listed below. format. An NVARCHAR form...

This example provides a brief overview - for a more in-depth explanation of normal forms and examples, see this question. Reduced normal form The reduced normal form (or just normal form, when the context is clear) of an expression is the result of evaluating all reducible subexpressions in the gi...

Makes a request only sending part of the form. The text1 value is set, but not text2, as the listener states. Bean.java @ManagedBean @ViewScoped public class Bean { private String text1; private String text2; public String getText1() { return text1; } pu...

#include <SPI.h> #define CSPIN 1 void setup() { pinMode(CSPIN, OUTPUT); // init chip select pin as an output digitalWrite(CSPIN, 1); // most slaves interpret a high level on CS as "deasserted" SPI.begin(); SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MO...

#include <Servo.h> Servo srv; void setup() { srv.attach(9); // Attach to the servo on pin 9 } To use a servo, you need to call attach() function first. It starts generating a PWM signal controlling a servo on a specified pin. On boards other than Arduino Mega, use of Servo lib...

Here is a workaround to temporary reset your password for your account. Login to your hosting panel and use the database tool that is available (probably PHPmyAdmin). Load the appropriate database and then go to the jos_users table. (The database prefix might be different for your case). ...

All proxy services events are logged in the wso2carbon log file (located in %CARBON_HOME%/repository/logs). If you want, you can have separate log files for each proxy service. Keep in mind, though, that they will still be logged in wso2carbon log file as well. To do so, you should change the log4...

Sitecore Instance Manager is open-source tool which is used for managing the local park of Sitecore instances. You can install, locate, maintain, reinstal or delete Sitecore products. It also helps you install your sitecore instance with any sitecore packages, modules and only thing you need to do i...

What you need is to get an entitlements file so the app can access your iCloud and write records using CloudKit. Follow the steps to grant access to iCloud from your app: 1- Select the project in the Project Navigator, and then open the General tab. 2- In the Identity section, set your developer ...

Check this out: :help holy-grail

The two mapAccum functions combine the operations of folding and mapping. -- A Traversable structure -- | -- A seed value | ...

For complete control over a new Chart and Series object (especially for a dynamic Series name), you must resort to modifying the SERIES formula directly. The process to set up the Range objects is straightforward and the main hurdle is simply the string building for the SERIES formula. The SERIES ...

# example data set.seed(1) n = 1e7 ng = 1e4 DT = data.table( g1 = sample(ng, n, replace=TRUE), g2 = sample(ng, n, replace=TRUE), v = rnorm(n) ) Matching on one column After the first run of a subsetting operation with == or %in%... system.time( DT[ g1 %in% 1:100] )...

You can do a permissions check when sending an Intent to a registered broadcast receiver. The permissions you send are cross-checked with the ones registered under the tag. They restrict who can send broadcasts to the associated receiver. To send a broadcast request with permissions, specify the p...

for arg; do echo arg=$arg done A for loop without a list of words parameter will iterate over the positional parameters instead. In other words, the above example is equivalent to this code: for arg in "$@"; do echo arg=$arg done In other words, if you catch yourself wri...

# The following shell function will be used to generate completions for # the "nuance_tune" command. _nuance_tune_opts () { local curr_arg prev_arg curr_arg=${COMP_WORDS[COMP_CWORD]} prev_arg=${COMP_WORDS[COMP_CWORD-1]} # The "config" option takes a file arg, so ...