yq/pkg/yqlib/doc/operators/reverse.md

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2022-02-22 03:15:31 +00:00
# Reverse
Reverses the order of the items in an array
## Reverse
Given a sample.yml file of:
```yaml
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- 1
- 2
- 3
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```
then
```bash
yq 'reverse' sample.yml
```
will output
```yaml
2023-05-30 05:05:28 +00:00
- 3
- 2
- 1
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```
## Sort descending by string field
Use sort with reverse to sort in descending order.
Given a sample.yml file of:
```yaml
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- a: banana
- a: cat
- a: apple
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```
then
```bash
yq 'sort_by(.a) | reverse' sample.yml
```
will output
```yaml
2023-05-30 05:05:28 +00:00
- a: cat
- a: banana
- a: apple
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```