Off

Off or OFF may refer to:

See also

Off!

Off! is an American hardcore punk supergroup, formed in Los Angeles in 2009.

History

Off! was formed in Los Angeles, California in late 2009 by Circle Jerks/Black Flag singer Keith Morris, Burning Brides frontman Dimitri Coats, Redd Kross bassist Steven Shane McDonald, and Rocket From The Crypt/Hot Snakes drummer Mario Rubalcaba. The idea to form the band came after Coats had worked as producer on a Circle Jerks album which fell apart. During that time, Coats and Morris had written several songs together which they used to start Off!. The group made its live debut at the 2010 South By Southwest Music Festival in Austin, Texas. Off!'s first Los Angeles show featured an original art installation by Raymond Pettibon at a downtown warehouse space.

The first release by Off! is a 7" vinyl EP called 1st EP, which debuted on October 13, 2010. That EP, along with three more EPs, were later released as a four 7" vinyl box set entitled First Four EPs on December 14, 2010. The collection contains sixteen songs and features artwork by Raymond Pettibon.

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.