suyiiyii/yq
1
0
Fork 0
mirror of https://github.com/mikefarah/yq.git synced 2024-11-12 05:38:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added notice for older versions of yq

Browse Source
This commit is contained in:
Mike Farah 2022-01-28 13:02:25 +11:00
parent 9b7c80a76b
commit 772d369058
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
README.md
View File

@ -7,8 +7,32 @@ a lightweight and portable command-line YAML, JSON and XML processor. `yq` uses
yq is written in go - so you can download a dependency free binary for your platform and you are good to go! If you prefer there are a variety of package managers that can be used as well as Docker and Podman, all listed below.
## Notice for v4.x versions prior to 4.18.1
Since 4.18.1, yq's 'eval/e' command is the _default_ command and no longers needs to be specified.
Older versions will still need to specify 'eval/e'.
Similarly, '-' is no longer required as a filename to read from STDIN (unless reading from multiple files).
TLDR:
Prior to 4.18.1
```bash
cat file.yaml | yq e '.cool' -
```
4.18+
```bash
cat file.yaml | yq '.cool'
```
When merging multiple files together, `eval-all/ea` is still required to tell `yq` to run the expression again all the document at once.
## Quick Usage Guide
Read a value:
```bash
yq '.a.b[0].c' file.yaml