hg parents [-r REV] [FILE]

show the parents of the working directory or revision

    Print the working directory's parent revisions. If a revision is given via
    -r/--rev, the parent of that revision will be printed. If a file argument
    is given, the revision in which the file was last changed (before the
    working directory revision or the argument to --rev if given) is printed.

    Returns 0 on success.

options:

 -r --rev REV           show parents of the specified revision
    --style STYLE       display using template map file
    --template TEMPLATE display with template

global options:

 -R --repository REPO   repository root directory or name of overlay bundle
                        file
    --cwd DIR           change working directory
 -y --noninteractive    do not prompt, automatically pick the first choice for
                        all prompts
 -q --quiet             suppress output
 -v --verbose           enable additional output
    --config CONFIG [+] set/override config option (use 'section.name=value')
    --debug             enable debugging output
    --debugger          start debugger
    --encoding ENCODE   set the charset encoding (default: ascii)
    --encodingmode MODE set the charset encoding mode (default: strict)
    --traceback         always print a traceback on exception
    --time              time how long the command takes
    --profile           print command execution profile
    --version           output version information and exit
 -h --help              display help and exit

[+] marked option can be specified multiple times