gistfile1.txt

% rm -rf ~/.cache/nix/tarballs/*                                                                                                                                              1 ↵
zsh: sure you want to delete all the files in /Users/tpflug/.cache/nix/tarballs [yn]? y
[tpflug@yoneda:/tmp]
% nix-shell & nix-shell
[38] 45844
downloading ‘https://github.com/NixOS/nixpkgs/tarball/27af419541a50c33d2bf0762c8740552794e5b1a’... downloading ‘https://github.com/NixOS/nixpkgs/tarball/27af419541a50c33d2bf0762c
8740552794e5b1a’... [01D [0/0 K/i0B ,Ki B0 [30/1 [   [6015/14614 KiB, 364.2 KiB/s]
unpacking ‘https://github.com/NixOS/nixpkgs/tarball/27af419541a50c33d2bf0762c8740552794e5b1a’...
 [8605/14614 KiB, 440.8 KiB/s][38]  + 45844 suspended (tty input)  nix-shell
 [14423/14614 KiB, 564.4 KiB/s]

[nix-shell:/tmp]$ exit


... multiple invocations of nix-shell & nix-shell ....


[tpflug@yoneda:/tmp]
% nix-shell & nix-shell
[50] 47320
error: creating symlink from ‘/Users/tpflug/.cache/nix/tarballs/.new_mm46xaz0wdh58q4smch92sw1r3q6gqys-27af419541a50c33d2bf0762c8740552794e5b1a-unpacked’ to ‘/nix/store/grx24c2nc58a8gr4s7jq0a7rr8nn4zs6-27af419541a50c33d2bf0762c8740552794e5b1a’: File exists
[50]    47320 exit 1     nix-shell

[nix-shell:/tmp]$ exit
[tpflug@yoneda:/tmp]
% find ~/.cache/nix/tarballs
/Users/tpflug/.cache/nix/tarballs
/Users/tpflug/.cache/nix/tarballs/1yhlj32hymkr0ifkx1p39ry7h6wl16vgkh5b63y8rr203f3b07kz-file
/Users/tpflug/.cache/nix/tarballs/1yhlj32hymkr0ifkx1p39ry7h6wl16vgkh5b63y8rr203f3b07kz.info
/Users/tpflug/.cache/nix/tarballs/mm46xaz0wdh58q4smch92sw1r3q6gqys-27af419541a50c33d2bf0762c8740552794e5b1a-unpacked
[tpflug@yoneda:/tmp]