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README.md
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# yq
a lightweight and portable command-line YAML processor. `yq` uses [jq](https://github.com/stedolan/jq) like syntax but works with yaml files as well as json. It doesn't yet support everything `jq` does - but it does support the most common operations and functions, and more is being added continuously.
aa lightweight and portable command-line YAML, JSON, INI and XML processor. `yq` uses [jq](https://github.com/stedolan/jq) like syntax but works with yaml files as well as json, xml, ini, properties, csv and tsv. It doesn't yet support everything `jq` does - but it does support the most common operations and functions, and more is being added continuously.
yq is written in go - so you can download a dependency free binary for your platform and you are good to go! If you prefer there are a variety of package managers that can be used as well as docker, all listed below.
yq is written in go - so you can download a dependency free binary for your platform and you are good to go! If you prefer there are a variety of package managers that can be used as well as Docker and Podman, all listed below.
## Quick Usage Guide
@ -13,10 +13,10 @@ yq '.a.b[0].c' file.yaml
Pipe from STDIN:
```bash
cat file.yaml | yq '.a.b[0].c'
yq '.a.b[0].c' < file.yaml
```
Update a yaml file, inplace
Update a yaml file, in place
```bash
yq -i '.a.b[0].c = "cool"' file.yaml
```
@ -27,7 +27,13 @@ NAME=mike yq -i '.a.b[0].c = strenv(NAME)' file.yaml
```
Merge multiple files
```
```bash
# merge two files
yq -n 'load("file1.yaml") * load("file2.yaml")'
# merge using globs:
# note the use of `ea` to evaluate all the files at once
# instead of in sequence
yq ea '. as $item ireduce ({}; . * $item )' path/to/*.yml
```
@ -40,6 +46,18 @@ yq -i '
' file.yaml
```
Find and update an item in an array:
```bash
yq '(.[] | select(.name == "foo") | .address) = "12 cat st"'
```
Convert JSON to YAML
```bash
yq -Poy sample.json
```
See [recipes](https://mikefarah.gitbook.io/yq/recipes) for more examples and the [documentation](https://mikefarah.gitbook.io/yq/) for more information.
Take a look at the discussions for [common questions](https://github.com/mikefarah/yq/discussions/categories/q-a), and [cool ideas](https://github.com/mikefarah/yq/discussions/categories/show-and-tell)
## Install