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setenv VARIABLE value # for csh and related shells A few simple principles govern how environment variables achieve their effect. Environment variables are local to the process in which they were set. If two shell processes are spawned and the value of an environment variable is changed in one, that change will not be seen by the other.
Standard Time (SDT) and Daylight Saving Time (DST) offsets from UTC in hours and minutes. For zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the SDT offset.
On many systems, such as macOS and Red Hat Linux, csh is actually tcsh, an improved version of csh. Often one of the two files is either a hard link or a symbolic link to the other, so that either name refers to the same improved version of the C shell. The original csh source code and binary are part of NetBSD.
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems.. GNU Core Utilities include basic file, shell and text manipulation utilities.
Within the OS's shell (ksh in Unix, bash in Linux, COMMAND.COM in DOS and CMD.EXE in Windows) they are a kind of variable: for instance, in unix and related systems an ordinary variable becomes an environment variable when the export keyword is used. Program code other than shells has to access them by API calls, such as getenv() and setenv().
Note the save flag of the SetEnv command and how global variables are available in the filesystem [clarification needed] Global variables are kept as files in ENV: , and optionally saved on disk in ENVARC: to survive reboot and power cycling .
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.
make menuconfig was not in the first version of Linux. The predecessor tool is a question-and-answer-based utility (make config, make oldconfig). Variations of the tool for Linux configuration include: make xconfig, which requires Qt; make gconfig, which uses GTK+; make nconfig, which is similar to make menuconfig.