Program Environment Variables
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Program Environment Variables
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The name of the currently running program is discussed at Running Process Information - Getting information on running processes.
See also Program Configuration Data
Up to Execution
See also: Local Process Communication - Communication between processes running on the same system. Synchronization. File locking. Signals. FIFOs, pipes, et al
See also: Process Creation and Control covers child process control (like sending signals), renice, fork, et al
Envy Shell-independent environment variable management {Artistic}
(PERL predefined variable) $ENV{expr} The hash %ENV contains your current environment. Setting a value in ENV changes the environment for child processes.
Env - On nearly all operating systems, every process runs in some environment. Your path (a.k.a. $PATH) and home directory, for instance, are almost always variables in that environment. You can access your environment (that is, you can find out the va
Cwd - Three functions for determining the current working directory. One is fast but flaky, one is slow and safe, one is juuust right. The Cwd module is bundled with Perl.
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