yq

yq is a lightweight and portable command-line YAML processor

Deprecated Notice

v3 is now deprecated, critical bug fixes and security fixes will still be applied until August 2021.

Install

yq has pre-built binaries for most platforms - checkout the releases page for the latest build. Alternatively - you can use one of the methods below:

MacOs / Linux via Homebrew:

brew install yq@3

Note that as this is a versioned brew it will not add the yq command to your path automatically. Please follow the instructions given by brew upon installation.

On Windows:

choco install yq

Kindly maintained by @chillum (https://github.com/chillum/choco-packages/tree/master/yq), https://chocolatey.org/packages/yq

Alpine Linux

• Enable edge/community repo by adding $MIRROR/alpine/edge/community to /etc/apk/repositories

• Update database index with apk update

• Install yq with apk add yq

Supported by Tuan Hoang https://pkgs.alpinelinux.org/package/edge/community/x86/yq

On Ubuntu and other Linux distributions supporting snap packages:

snap install yq --channel=v3/stable

Snap notes

yq installs with with strict confinement in snap, this means it doesn't have direct access to root files. To read root files you can:

sudo cat /etc/myfile | yq r - somecommand

And to write to a root file you can either use sponge:

sudo cat /etc/myfile | yq r - somecommand | sudo sponge /etc/myfile

or write to a temporary file:

sudo cat /etc/myfile | yq r - somecommand | sudo tee /etc/myfile.tmp
sudo mv /etc/myfile.tmp /etc/myfile
rm /etc/myfile.tmp

On Ubuntu 16.04 or higher from Debian package:

sudo add-apt-repository ppa:rmescandon/yq
sudo apt update
sudo apt install yq -y

Kindly maintained by @rmescandon

go get:

GO111MODULE=on go get github.com/mikefarah/yq/v3

Docker

Oneshot use:

docker run --rm -v ${PWD}:/workdir mikefarah/yq yq [flags] <command> FILE...

Run commands interactively:

docker run --rm -it -v ${PWD}:/workdir mikefarah/yq sh

It can be useful to have a bash function to avoid typing the whole docker command:

yq() {
  docker run --rm -i -v ${PWD}:/workdir mikefarah/yq yq $@
}

Parsing engine and YAML spec support

Under the hood, yq uses go-yaml v3 as the yaml parser, which supports yaml spec 1.2. In particular, note that in 1.2 the values 'yes'/'no' are no longer interpreted as booleans, but as strings.