mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-15 15:48:04 +00:00
49 lines
617 B
Markdown
49 lines
617 B
Markdown
|
# 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:
|
||
|
```yaml
|
||
|
- 1
|
||
|
- 2
|
||
|
- 3
|
||
|
```
|
||
|
then
|
||
|
```bash
|
||
|
yq 'reverse' sample.yml
|
||
|
```
|
||
|
will output
|
||
|
```yaml
|
||
|
- 3
|
||
|
- 2
|
||
|
- 1
|
||
|
```
|
||
|
|
||
|
## Sort descending by string field
|
||
|
Use sort with reverse to sort in descending order.
|
||
|
|
||
|
Given a sample.yml file of:
|
||
|
```yaml
|
||
|
- a: banana
|
||
|
- a: cat
|
||
|
- a: apple
|
||
|
```
|
||
|
then
|
||
|
```bash
|
||
|
yq 'sort_by(.a) | reverse' sample.yml
|
||
|
```
|
||
|
will output
|
||
|
```yaml
|
||
|
- a: cat
|
||
|
- a: banana
|
||
|
- a: apple
|
||
|
```
|
||
|
|