This is tool to query Atlassian Crowd server via command line. Use --help for commands and options info. Commands supported: user, group Query user/group info. users, groups Query user/group list. There can be optional query filter parameter using query language as desctibed in https://developer.atlassian.com/display/CROWDDEV/Crowd+Query+Language e.g.: ./crowd-tool users firstName=Paul Note that values containing spaces need to be quoted for passing to Crowd, which in turn requires additional single-quoting on shell command line: ./crowd-tool users displayName='"Paul S*"' usergroups Query user's groups. Either direct memberships shown, or, with --nested option, recursive. groupusers Query group's member users. groupgroups Query group's member groups. members Query group's members - both users and groups. ismember Check if given user is member of given group. Example: ./crowd-tool -u <crowd-user> -P groupusers infrastructure Replace <crowd-user> with your Crowd access ("application") credentials. -P switch will cause for password prompt for that user. The command will list users which are direct members of "infrastructure" Crowd group.