Name

       nix-store --export - export store paths to a Nix Archive

   Synopsis
       nix-store --export paths…

   Description
       The  operation  --export writes a serialisation of the given store objects to standard output in a format
       that can be imported into another Nix store with nix-store --import.

              Warning

              This command does not produce a closure of the specified store paths.  Trying to  import  a  store
              object that refers to store paths not available in the target Nix store will fail.

              Use nix-store --query to obtain the closure of a store path.

       This  command  is different from nix-store --dump, which produces a Nix archive that does not contain the
       set of references of a given store path.

              Note

              For efficient transfer of closures to remote machines over SSH, use nix-copy-closure.

       {{#include ./opt-common.md}}

       {{#include ../opt-common.md}}

       {{#include ../env-common.md}}

Examples

              Example

              Deploy GNU Hello to an airgapped machine via USB stick.

              Write the closure to the block device on a machine with internet connection:

              [alice@itchy]$ storePath=$(nix-build '<nixpkgs>' -I nixpkgs=channel:nixpkgs-unstable -A hello --no-out-link)
              [alice@itchy]$ nix-store --export $(nix-store --query --requisites $storePath) | sudo dd of=/dev/usb

              Read the closure from the block device on the machine without internet connection:

              [bob@scratchy]$ hello=$(sudo dd if=/dev/usb | nix-store --import | tail -1)
              [bob@scratchy]$ $hello/bin/hello
              Hello, world!

                                                                                           nix-store --export(1)