List top-level YAML keys
Build a paste-ready command, then review its compatibility and effects before running it.
yq '. | keys | .[]' config.yamlread-onlyno known side effects Compatibility
LinuxVerified for Linux using posix, bash, zsh syntax.
Operational knowledgereview due 2027-01-20
Requirementsyqyq must be installed and available on PATH.
Version supportyq Current supported releasesVerified for linux using posix, bash, zsh syntax; consult compatibility notes for platform-specific differences.
Expected signalsenvironmentRepresentative successful output; values vary with the selected target and system state.
Known errorsyq: command not foundyq is missing or is not available on PATH.
Verifyyq '. | keys | .[]' config.yamlThe output matches the expected target and exits without an error.Rollback noteNot required: this command is read-only and does not change system state.
Command breakdown
01yqCommandRuns the yq stage of this one-liner.
02'. | keys | .[]'ArgumentPasses '. | keys | .[]' to yq.
03config.yamlArgumentPasses config.yaml to yq.
Example input
yq '. | keys | .[]' config.yaml
Example output
environment
services
version
Illustrative output — exact values vary by system and data.
Official sources