foo.sh-session

$ nix-collect-garbage --delete-old # Delete all garbage and old generations.

[snip]

$ nix-env --list-generations
1007   2020-09-16 06:49:32   (current)

$ ls -alFh /home/steshaw/.nix-profile
lrwxrwxrwx 1 steshaw users 46 Jul 15  2019 /home/steshaw/.nix-profile -> /nix/var/nix/profiles/per-user/steshaw/profile/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile
lrwxrwxrwx 1 steshaw users 17 Sep 16 06:49 /nix/var/nix/profiles/per-user/steshaw/profile -> profile-1007-link/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile-1007-link
lrwxrwxrwx 1 steshaw users 60 Sep 16 06:49 /nix/var/nix/profiles/per-user/steshaw/profile-1007-link -> /nix/store/jzhb3wgjflgdb11v2k09lwf46a16lfzh-user-environment/

$ nix-env -iA nixpkgs.fzf
installing 'fzf-0.22.0'
these paths will be fetched (16.84 MiB download, 91.31 MiB unpacked):
  /nix/store/2f6zzvixj3wsj81flbdcpc6fdscgx4ai-coreutils-8.31
  /nix/store/4zby60235wjhj6kccglm1vcygf098li8-fzf-0.22.0-man
  /nix/store/5b6853g3y2wvzc48l6921a6qcr55lqk2-perl-5.32.0
  /nix/store/6ffp6xbr6j2ryqw2dafbbvv55ggq16iv-bash-4.4-p23
  /nix/store/87alzvyjwdf2w1k6i6aj87pn4r0sdm6c-libunistring-0.9.10
  /nix/store/dd3prkmzh7wjfz5cxnlym54vlh7ni89k-libidn2-2.3.0
  /nix/store/fby8klnixr66d81cldxffq38x0q4bxa9-attr-2.4.48
  /nix/store/hnsw79vycakpi4hgzsiayi235145rdfs-fzf-0.22.0
  /nix/store/ilbwv6r37l626g7fg5s1g93k70zq3rp9-tzdata-2019c
  /nix/store/jvjchabdmcxlwjhbiii5sy6d2hcg6z7r-glibc-2.31
  /nix/store/xhb1hfzw71vkd7bdr5vjczlw0k78q1ni-acl-2.2.53
copying path '/nix/store/4zby60235wjhj6kccglm1vcygf098li8-fzf-0.22.0-man' from 'https://cache.nixos.org'...
copying path '/nix/store/87alzvyjwdf2w1k6i6aj87pn4r0sdm6c-libunistring-0.9.10' from 'https://cache.nixos.org'...
copying path '/nix/store/ilbwv6r37l626g7fg5s1g93k70zq3rp9-tzdata-2019c' from 'https://cache.nixos.org'...
copying path '/nix/store/dd3prkmzh7wjfz5cxnlym54vlh7ni89k-libidn2-2.3.0' from 'https://cache.nixos.org'...
copying path '/nix/store/jvjchabdmcxlwjhbiii5sy6d2hcg6z7r-glibc-2.31' from 'https://cache.nixos.org'...
copying path '/nix/store/fby8klnixr66d81cldxffq38x0q4bxa9-attr-2.4.48' from 'https://cache.nixos.org'...
copying path '/nix/store/6ffp6xbr6j2ryqw2dafbbvv55ggq16iv-bash-4.4-p23' from 'https://cache.nixos.org'...
copying path '/nix/store/xhb1hfzw71vkd7bdr5vjczlw0k78q1ni-acl-2.2.53' from 'https://cache.nixos.org'...
copying path '/nix/store/2f6zzvixj3wsj81flbdcpc6fdscgx4ai-coreutils-8.31' from 'https://cache.nixos.org'...
copying path '/nix/store/5b6853g3y2wvzc48l6921a6qcr55lqk2-perl-5.32.0' from 'https://cache.nixos.org'...
copying path '/nix/store/hnsw79vycakpi4hgzsiayi235145rdfs-fzf-0.22.0' from 'https://cache.nixos.org'...
building '/nix/store/cxhwvrgdmh8pc6agijywdx9yf02xprd9-user-environment.drv'...
created 2137 symlinks in user environment

$ ls -alFh /home/steshaw/.nix-profile
lrwxrwxrwx 1 steshaw users 46 Jul 15  2019 /home/steshaw/.nix-profile -> /nix/var/nix/profiles/per-user/steshaw/profile/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile
lrwxrwxrwx 1 steshaw users 17 Sep 16 06:51 /nix/var/nix/profiles/per-user/steshaw/profile -> profile-1008-link/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile-1008-link
lrwxrwxrwx 1 steshaw users 60 Sep 16 06:51 /nix/var/nix/profiles/per-user/steshaw/profile-1008-link -> /nix/store/bp1ff0l7akza0bxpr5qf3z74p20a1ij9-user-environment/

$ nix-env --list-generations
1007   2020-09-16 06:49:32   
1008   2020-09-16 06:51:13   (current)

$ nix-env -e fzf
uninstalling 'fzf-0.22.0'

$ ls -alFh /home/steshaw/.nix-profile
lrwxrwxrwx 1 steshaw users 46 Jul 15  2019 /home/steshaw/.nix-profile -> /nix/var/nix/profiles/per-user/steshaw/profile/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile
lrwxrwxrwx 1 steshaw users 17 Sep 16 06:51 /nix/var/nix/profiles/per-user/steshaw/profile -> profile-1009-link/

$ ls -alFh /nix/var/nix/profiles/per-user/steshaw/profile-1009-link
lrwxrwxrwx 1 steshaw users 60 Sep 16 06:51 /nix/var/nix/profiles/per-user/steshaw/profile-1009-link -> /nix/store/jzhb3wgjflgdb11v2k09lwf46a16lfzh-user-environment/

$ nix-env --list-generations
1007   2020-09-16 06:49:32   
1008   2020-09-16 06:51:13   
1009   2020-09-16 06:51:13   (current)