YQ to Dasel

The follow examples show a set of yq commands and the equivalent in dasel.

Select a single value

YQ

echo 'name: Tom' | yq '.name'
"Tom"

Dasel

echo 'name: Tom' | dasel -p yaml '.name'
Tom

Select a nested value

YQ

echo 'user:
  name: Tom
  age: 27' | yq '.user.age'
27

Dasel

echo 'user:
       name: Tom
       age: 27' | dasel -p yaml '.user.age'
27

Select an array index

YQ

echo '- 1
- 2
- 3' | yq '.[1]'
2

Dasel

echo '- 1
- 2
- 3' | dasel -p yaml '.[1]'
2

Append to an array of strings

YQ

echo '- a
- b
- c' | yq --yaml-output '. += ["d"]'
- a
- b
- c
- d

Dasel

echo '- a
- b
- c' | dasel put string -p yaml -s '.[]' d
- a
- b
- c
- d

Update a string value

YQ

echo '- a
- b
- c' | yq --yaml-output '.[1] = "d"'
- a
- d
- c

Dasel

echo '- a
- b
- c' | dasel put string -p yaml -s '.[1]' d
- a
- d
- c

Update an int value

YQ

echo '- 1
- 2
- 3' | yq --yaml-output '.[1] = 5'
- 1
- 5
- 3

Dasel

echo '- 1
- 2
- 3' | dasel put int -p yaml -s '.[1]' 5
- 1
- 5
- 3

Overwrite an object

YQ

echo 'user:
  name: Tom
  age: 27' | yq --yaml-output '.user = {"name": "Frank", "age": 25}'
user:
  name: Frank
  age: 25

Dasel put object

echo 'user:
  name: Tom
  age: 27' | dasel put object -p yaml -t string -t int '.user' name=Frank age=25
user:
  age: 25
  name: Frank

Dasel put document

echo 'user:
  name: Tom
  age: 27' | dasel put document -p yaml -d json '.user' '{"name":"Frank","age":25}'
user:
  age: 25
  name: Frank

Append to an array of objects

YQ

echo 'users:
- name: Tom' | yq --yaml-output '.users += [{"name": "Frank"}]'
users:
  - name: Tom
  - name: Frank

Dasel put object

echo 'users:
- name: Tom' | dasel put object -p yaml -t string '.users.[]' name=Frank
users:
- name: Tom
- name: Frank

Dasel put document

echo 'users:
- name: Tom' | dasel put document -p yaml -d json '.users.[]' '{"name":"Frank"}'
users:
- name: Tom
- name: Frank