Pjanoo

"Pjanoo" (Swedish pronunciation: [ˈpjɑːnʊ]) is a keyboard-based house track by the Swedish DJ and producer Eric Prydz. It has received moderate airplay amongst British radio stations, being heavily used by BBC Radio 1 in advertisements for their "Radio 1 Big Weekend" and "Weekend in Ibiza" events. The single peaked at number six on the Swedish Singles Chart. "Pjanoo" found success outside Sweden, particularly in the United Kingdom, where it peaked at number two on the UK Singles Chart and topped the country's Dance chart for ten non-consecutive weeks.

Background and release

The song has been on promotional release since 17 March 2008 with Eric Prydz's own label, Pryda, with a limited number of 12" pressings available on special order. The song was released on 25 August 2008 by Ministry of Sound's Imprint Label, Data Records.

Prydz stated: "I played it in a club in northern UK in 2006. Didn't get the reaction I thought I would, so I didn't play it for years until I found the CD while playing at 'Ambasadeur' club in Stockholm. Played it for fun again and it went off. Someone filmed it and it ended up on YouTube. The rest is history."

Environment variable

Environment variables are a set of dynamic named values that can affect the way running processes will behave on a computer.

They are part of the environment in which a process runs. For example, a running process can query the value of the TEMP environment variable to discover a suitable location to store temporary files, or the HOME or USERPROFILE variable to find the directory structure owned by the user running the process.

They were introduced in their modern form in 1979 with Version 7 Unix, so are included in all Unix operating system flavors and variants from that point onward including Linux and OS X. From PC DOS 2.0 in 1982, all succeeding Microsoft operating systems including Microsoft Windows, and OS/2 also have included them as a feature, although with somewhat different syntax, usage and standard variable names.

Details

In all Unix and Unix-like systems, each process has its own separate set of environment variables. By default, when a process is created, it inherits a duplicate environment of its parent process, except for explicit changes made by the parent when it creates the child. At the API level, these changes must be done between running fork and exec. Alternatively, from command shells such as bash, a user can change environment variables for a particular command invocation by indirectly invoking it via env or using the ENVIRONMENT_VARIABLE=VALUE <command> notation. All Unix operating system flavors, DOS, and Windows have environment variables; however, they do not all use the same variable names. A running program can access the values of environment variables for configuration purposes.

CLS

CLS may refer to:

Academic fields

Education

Societies and associations

Software and technology

CLS (command)

In computing, CLS (for clear screen) is a command used by the command line interpreters COMMAND.COM and CMD.EXE on DOS, OS/2 and Microsoft Windows operating systems to clear the screen or console window of commands and any output generated by them. It does not clear the user's history of commands, however. The command is also available in the DEC RT-11 operating system. In other environments, such as Linux and Unix, the same functionality is provided by the clear command.

While the ultimate origins of using the three-character string CLS as the command to clear the screen likely predate Microsoft's use, this command was present before its MS-DOS usage, in the embedded ROM BASIC dialects Microsoft wrote for early 8-bit microcomputers (such as TRS-80 Color BASIC), where it served the same purpose. The MS-DOS dialects of BASIC written by Microsoft, BASICA and GW-BASIC, also have the CLS command as a BASIC keyword - as do various non-Microsoft implementations of BASIC such as BBC BASIC found on the BBC Micro computers. The CLS command is also present in BASIC versions for Microsoft Windows, however this generally clears text printed on the form, rather than the whole screen or controls on the form.