Tutorial by Topics: usi

Provides a convenient syntax that ensures the correct use of IDisposable objects. using (disposable) { } using (IDisposable disposable = new MyDisposable()) { } The object in the using statement must implement the IDisposable interface. using(var obj = new MyObject()) { } class M...

The using keyword is both a directive (this topic) and a statement. For the using statement (i.e. to encapsulate the scope of an IDisposable object, ensuring that outside of that scope the object becomes cleanly disposed) please see Using Statement.

trap action sigspec... # Run "action" on a list of signals trap sigspec... # Omitting action resets traps for signals ParameterMeaning-pList currently installed traps-lList signal names and corresponding numbers The trap utility is a special shell built-in. It's defined in POSI...

cat [OPTIONS]... [FILE]... OptionDetails-nPrint line numbers-vShow non-printing characters using ^ and M- notation except LFD and TAB-TShow TAB characters as ^I-EShow linefeed(LF) characters as $-eSame as -vE-bNumber nonempty output lines, overrides -n-Aequivalent to -vET-ssuppress repeated ...

mysqldump -u [username] -p[password] [other options] db_name > dumpFileName.sql /// To Backup single database mysqldump -u [username] -p[password] [other options] db_name [tbl_name1 tbl_name2 tbl_name2 ...] > dumpFileName.sql /// To Backup one or more tables mysqldump -u [username] -...

SELECT column_name FROM table_name WHERE column_name operator value SELECT column_name, aggregate_function(column_name) FROM table_name GROUP BY column_name HAVING aggregate_function(column_name) operator value

resource curl_init ([ string $url = NULL ] ) bool curl_setopt ( resource $ch , int $option , mixed $value ) bool curl_setopt_array ( resource $ch, array $options ) mixed curl_exec ( resource $ch ) void curl_close ( resource $ch ) ParameterDetailscurl_init-- Initialize a cURL sessionurl...

This section provides an overview of what coldfusion is, and why a developer might want to use it. It should also mention any large subjects within coldfusion, and link out to the related topics. Since the Documentation for coldfusion is new, you may need to create initial versions of those rela...

$PSCmdlet.ShouldProcess("Target") $PSCmdlet.ShouldProcess("Target", "Action") ParameterDetailsTargetThe resource being changed.ActionThe operation being performed. Defaults to the name of the cmdlet. $PSCmdlet.ShouldProcess() will also automatically write a m...

The basic pattern for writing a module is to fill a table with keys that are function names and values that are the functions themselves. The module then returns this function for calling code to require and use. (Functions are first-class values in Lua, so storing a function in a table is easy an...

Serial ports are a common interface for communicating with external sensors or embedded systems such as Arduinos. Modern serial communications are often implemented over USB connections using USB-serial adapters. MATLAB provides built-in functions for serial communications, including RS-232 and RS-...

These classes are reference libraries of methods and properties that do not change state, in one word, immutable. You don't need to create them, you simply use them. Classes and methods such as these are called static classes because they are not created, destroyed, or changed.You can refer to a sta...

Log.v(String tag, String msg, Throwable tr) Log.v(String tag, String msg) Log.d(String tag, String msg, Throwable tr) Log.d(String tag, String msg) Log.i(String tag, String msg, Throwable tr) Log.i(String tag, String msg) Log.w(String tag, String msg, Throwable tr) Log.w(String tag, String...