See https://guix.gnu.org/manual/devel/en/html_node/Invoking-guix-environment.html.
Deprecation warning: The guix environment command is deprecated in favor of guix shell, which performs similar functions but is more convenient to use. See Invoking guix shell.
Being deprecated, guix environment is slated for eventual removal, but the Guix project is committed to keeping it until May 1st, 2023. Please get in touch with us at guix-devel@gnu.org if you would like to discuss it.
See also https://guix.gnu.org/blog/2021/from-guix-environment-to-guix-shell/ for a blog post and additional details.
Guix shell was added to Guix ~1 year ago, in this commit, https://git.savannah.gnu.org/cgit/guix.git/commit/?id=80edb7df6586464aa40e84e103f0045452de95db, which isn't part of the 1.3.0 release binaries out of the box, but invoking a guix pull, and updating will make it available. i.e:
bash-5.1# guix --version
guix (GNU Guix) 1.3.0
Copyright (C) 2021 the Guix authors
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
bash-5.1# guix shell
guix: shell: command not found
Try 'guix --help' for more information.
bash-5.1# guix pull
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Authenticating channel 'guix', commits 9edb3f6 to 7a980bb (6,278 new commits)...
Building from this channel:
guix https://git.savannah.gnu.org/git/guix.git 7a980bb
< snip >
building /gnu/store/2wwwsczxcw61m05p4mv0kf0advx4fqsb-inferior-script.scm.drv...
building package cache...
building profile with 1 package...
New in this revision:
6,866 new packages: a2jmidid, abjad,
bash-5.1# guix help shell
Usage: guix shell [OPTION] PACKAGES... [-- COMMAND...]
Build an environment that includes PACKAGES and execute COMMAND or an
interactive shell in that environment.
