HdfsCLI Avro: an Avro extension for HdfsCLI.

Usage:
  hdfscli-avro schema [-a ALIAS] [-v...] HDFS_PATH
  hdfscli-avro read [-a ALIAS] [-v...] [-F FREQ | -n NUM] [-p PARTS] HDFS_PATH
  hdfscli-avro write [-fa ALIAS] [-v...] [-C CODEC] [-S SCHEMA] HDFS_PATH
  hdfscli-avro -L | -h

Commands:
  schema                        Pretty print schema.
  read                          Read an Avro file from HDFS and output records
                                as JSON to standard out.
  write                         Read JSON records from standard in and
                                serialize them into a single Avro file on HDFS.

Arguments:
  HDFS_PATH                     Remote path to Avro file or directory
                                containing Avro part-files.

Options:
  -C CODEC --codec=CODEC        Compression codec. Available values are among:
                                null, deflate, snappy. [default: deflate]
  -F FREQ --freq=FREQ           Probability of sampling a record.
  -L --log                      Show path to current log file and exit.
  -S SCHEMA --schema=SCHEMA     Schema for serializing records. If not passed,
                                it will be inferred from the first record.
  -a ALIAS --alias=ALIAS        Alias of namenode to connect to.
  -f --force                    Overwrite any existing file.
  -h --help                     Show this message and exit.
  -n NUM --num=NUM              Cap number of records to output.
  -p PARTS --parts=PARTS        Part-files to read. Specify a number to
                                randomly select that many, or a comma-separated
                                list of numbers to read only these. Use a
                                number followed by a comma (e.g. `1,`) to get a
                                unique part-file. The default is to read all
                                part-files.
  -v --verbose                  Enable log output. Can be specified up to three
                                times (increasing verbosity each time).

Examples:
  hdfscli-avro schema /data/impressions.avro
  hdfscli-avro read -a dev snapshot.avro >snapshot.jsonl
  hdfscli-avro read -F 0.1 -p 2,3 clicks.avro
  hdfscli-avro write -f positives.avro <positives.jsonl -S "$(cat schema.avsc)"