nix eval

all

Evaluate a Nix expression and print the result to `stdout`.

Examples (6)

Evaluate Nix flake attributes in the current directory

nix eval .#attributes

Evaluate a given Nix expression

nix eval --expr 'your_expression'

Evaluate a Nix expression from a specified file

nix eval --file path/to/file

Print the store path of the specified package from nixpkgs

nix eval nixpkgs#pkg --raw

Evaluate attributes from a flake directly from GitHub

nix eval github:owner/repo#attributes

Evaluate a given lambda function passing the specified package as argument

nix eval nixpkgs#pkg --apply 'lambda_function'