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121 lines
1.3 KiB
Markdown
121 lines
1.3 KiB
Markdown
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# Delete
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Deletes matching entries in maps or arrays.
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## Delete entry in map
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Given a sample.yml file of:
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```yaml
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a: cat
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b: dog
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```
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then
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```bash
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yq eval 'del(.b)' sample.yml
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```
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will output
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```yaml
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a: cat
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```
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## Delete nested entry in map
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Given a sample.yml file of:
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```yaml
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a:
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a1: fred
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a2: frood
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```
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then
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```bash
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yq eval 'del(.a.a1)' sample.yml
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```
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will output
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```yaml
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a:
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a2: frood
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```
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## Delete entry in array
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Given a sample.yml file of:
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```yaml
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- 1
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- 2
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- 3
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```
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then
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```bash
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yq eval 'del(.[1])' sample.yml
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```
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will output
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```yaml
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- 1
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- 3
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```
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## Delete nested entry in array
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Given a sample.yml file of:
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```yaml
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- a: cat
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b: dog
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```
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then
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```bash
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yq eval 'del(.[0].a)' sample.yml
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```
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will output
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```yaml
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- b: dog
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```
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## Delete no matches
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Given a sample.yml file of:
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```yaml
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a: cat
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b: dog
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```
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then
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```bash
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yq eval 'del(.c)' sample.yml
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```
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will output
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```yaml
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a: cat
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b: dog
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```
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## Delete matching entries
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Given a sample.yml file of:
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```yaml
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a: cat
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b: dog
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c: bat
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```
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then
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```bash
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yq eval 'del( .[] | select(. == "*at") )' sample.yml
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```
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will output
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```yaml
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b: dog
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```
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## Recursively delete matching keys
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Given a sample.yml file of:
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```yaml
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a:
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name: frog
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b:
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name: blog
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age: 12
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```
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then
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```bash
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yq eval 'del(.. | select(has("name")).name)' sample.yml
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```
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will output
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```yaml
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a:
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b:
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age: 12
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```
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