pschyska

# acquire nix-prefetch
$ cat > default.nix <<-"EOF"
with import <nixpkgs> { };
pkgs.mkShell rec { nativeBuildInputs = [ pkgs.nix-prefetch ]; }
EOF
$ nix-shell
# N.B.: in nix-shell my PS1 changes to (impure) *

# override terraform derivation with new source, but without sha256 and vendorSha256
(impure) * cat > terraform.nix <<-"EOF"

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)