Entries

Similar to the same named functions in jq these functions convert to/from an object and an array of key-value pairs. This is most useful for performing operations on keys of maps.
to_entries Map
Given a sample.yml file of:
a: 1
b: 2
then
yq 'to_entries' sample.yml
will output
- key: a
  value: 1
- key: b
  value: 2
to_entries Array
Given a sample.yml file of:
- a
- b
then
yq 'to_entries' sample.yml
will output
- key: 0
  value: a
- key: 1
  value: b
to_entries null
Given a sample.yml file of:
null
then
yq 'to_entries' sample.yml
will output
​
from_entries map
Given a sample.yml file of:
a: 1
b: 2
then
yq 'to_entries | from_entries' sample.yml
will output
a: 1
b: 2
from_entries with numeric key indices
from_entries always creates a map, even for numeric keys
Given a sample.yml file of:
- a
- b
then
yq 'to_entries | from_entries' sample.yml
will output
0: a
1: b
Use with_entries to update keys
Given a sample.yml file of:
a: 1
b: 2
then
yq 'with_entries(.key |= "KEY_" + .)' sample.yml
will output
KEY_a: 1
KEY_b: 2
Custom sort map keys
Use to_entries to convert to an array of key/value pairs, sort the array using sort/sort_by/etc, and convert it back.
Given a sample.yml file of:
a: 1
c: 3
b: 2
then
yq 'to_entries | sort_by(.key) | reverse | from_entries' sample.yml
will output
c: 3
b: 2
a: 1
Use with_entries to filter the map
Given a sample.yml file of:
a:
  b: bird
c:
  d: dog
then
yq 'with_entries(select(.value | has("b")))' sample.yml
will output
a:
  b: bird

Encode / Decode

Env Variable Operators

Last modified 6mo ago