M4ENV

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
LICENSE

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NAME

m4env - run m4 with environment variables accessible as macros

SYNOPSIS

m4env [OPTIONS] [FILES]

DESCRIPTION

Modifies the command line by replacing argv[0] with "m4" and inserting a -D option for each environment variable before the original argv[1]. Then execs m4 (from the PATH) with the created command line.

As a result, each environment variable is available for expansion as a m4 macro with the same name.

For example:

echo "Your user name is LOGNAME" | m4env

AUTHOR

Sergey Poznyakoff

LICENSE

"THE BEER-WARE LICENSE" (Revision 42):

<gray@gnu.org> wrote this file. As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return.

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