How to remove '/' from keys in a .yaml file if the '/' is the first character

[williamj20]

Hi, I have a bunch of paths in a .yaml file which start with '/'. For example: '/api/path'. I would like to remove all instances of these paths which start with '/', so that they become 'api/path'. How can I achieve this?

[mikefarah]

You can use the sub operator (see https://mikefarah.gitbook.io/yq/operators/string-operators#sub-regex-replacement) like this:

sample file (next time please provide one)

- /a/path
- something/else

yq '.[] |= sub("^/", "")' file.yaml

output:

- a/path
- something/else

Explanation:

• .[] will match all the elements in the array
• |= will update each element, with respect to itself
• sub("^/", "") matches a leading / and replaces it with an empty string