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An environment variable is a user-definable value that can affect the way running ... Shell scripts and batch files use environment variables to communicate data and ...
env is a shell command for Unix and Unix-like operating systems. It is used to either print a list of environment variables or run another utility in an altered environment without having to modify the currently existing environment. Using env, variables may be added or removed, and existing variables may be changed by assigning new values to them.
(Shell scripts do not require compilation before execution and, when certain requirements are met, can be invoked as commands by using their filename.) The resulting string is executed as a command. Bash also offers... Configurable execution environment(s): [79] Shell and session startup files such as ~/.bashrc and ~/.profile (i.e., dotfiles);
Variable completion is the completion of the name of a variable name (environment variable or shell variable). Bash, zsh, and fish have completion for all variable names. PowerShell has completions for environment variable names, shell variable names and — from within user-defined functions — parameter names.
A shell script is a computer program designed to be run by a Unix shell, ... A script which sets up the environment, runs the program, ... variables, comments, arrays
tcsh and sh shell windows on a Mac OS X Leopard [1] desktop. A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using ...
The C shell implements both shell and environment variables. [14] Environment variables, created using the setenv statement, are always simple strings, passed to any child processes, which retrieve these variables via the envp[] argument to main(). Shell variables, created using the set or @ statements, are internal to C shell. They are not ...
PATH is an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs are located. In general, each executing process or user session has its own PATH setting.