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Environment Variables
---------------------
In Finit v4.3 support for setting environment variables in `finit.conf`,
and any `*.conf`, was added. It is worth noting that these are global
and *shared with all* services -- the only way to have a service-local
environment is detailed in [Services Environment](service-env.md).
The syntax for global environment variables is straight forward. In
Finit v4.4 the `set` keyword was added for completeness, but the old
syntax (without the `set ` prefix) is still honored:
set foo=bar
set baz="qux"
On reload of .conf files, all tracked environment variables are cleared
so if `foo=bar` is removed from `finit.conf`, or any `finit.d/*.conf`
file, it will no longer be used by Finit or any new (!) started
run/tasks or services. The environment of already started processes can
not be changed.
The only variables reset to sane defaults on .conf reload are:
PATH=_PATH_STDPATH
SHELL=_PATH_BSHELL
LOGNAME=root
USER=root
It is entirely possible to override these as well from the .conf files,
but be careful. Changing SHELL changes the behavior of `system()` and a
lot of other commands as well.
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