yq/pkg/yqlib/doc/operators/reverse.md
2022-02-22 14:15:31 +11:00

617 B

Reverse

Reverses the order of the items in an array

{% hint style="warning" %} Note that versions prior to 4.18 require the 'eval/e' command to be specified.

yq e <exp> <file> {% endhint %}

Reverse

Given a sample.yml file of:

- 1
- 2
- 3

then

yq 'reverse' sample.yml

will output

- 3
- 2
- 1

Sort descending by string field

Use sort with reverse to sort in descending order.

Given a sample.yml file of:

- a: banana
- a: cat
- a: apple

then

yq 'sort_by(.a) | reverse' sample.yml

will output

- a: cat
- a: banana
- a: apple