Re: [PATCH] env: new option '-f/--file' to load variables from file

[Pádraig Brady]

On 08/10/2021 20:32, mdeclerk wrote:
> Add support to load variables from file using '-f/--file' option.
> Each line must match the pattern 'NAME=VALUE'. Empty lines and
> comments are ignored; comments start with '#' or whitepsaces
> followed by '#'. Values refering to one or more other variables
> indicated by a leading '$' (i.e., NEW_PATH=$PATH1:$PATH2:/my/path)
> are resolved with respect to the original environment. Unknown
> references are replaced with an empty string. This feature is
> intended to work in tandem with the '-i' option to setup a fresh
> envrionment plus the ability to import variables from the
> original environment as needed. Variables with the same name
> specified via command line override variables defined in the file.

This does seem useful.

I see some overlap in functionality
with the ENVIRON_FILE directive in login.defs(5)

I'll look into this a bit more.

thanks,
Pádraig