csvstat

TLDR

Show all stats for all columns

$ csvstat [data.csv]

Show all stats for columns 2 and 4

$ csvstat -c [2,4] [data.csv]

Show sums for all columns

$ csvstat --sum [data.csv]

Show the max value length for column 3

$ csvstat -c [3] --len [data.csv]

Show the number of unique values in the "name" column

$ csvstat -c [name] --unique [data.csv]

DESCRIPTION

usage: csvstat [-h] [-d DELIMITER] [-t] [-q QUOTECHAR] [-u {0,1,2,3}] [-b]

[-p ESCAPECHAR] [-z FIELD_SIZE_LIMIT] [-e ENCODING] [-S] [-H] [-K SKIP_LINES] [-v] [-l] [--zero] [-V] [--csv] [-n] [-c COLUMNS] [--type] [--nulls] [--unique] [--min] [--max] [--sum] [--mean] [--median] [--stdev] [--len] [--freq] [--freq-count FREQ_COUNT] [--count] [-y SNIFF_LIMIT] [FILE]

Print descriptive statistics for each column in a CSV file.

positional arguments:

FILE: The CSV file to operate on. If omitted, will accept input as piped data via STDIN.

optional arguments:

-h, --help: show this help message and exit
-d DELIMITER, --delimiter DELIMITER: Delimiting character of the input CSV file.
-t, --tabs: Specify that the input CSV file is delimited with tabs. Overrides "-d".
-q QUOTECHAR, --quotechar QUOTECHAR: Character used to quote strings in the input CSV file.
-u {0,1,2,3}, --quoting {0,1,2,3}: Quoting style used in the input CSV file. 0 = Quote Minimal, 1 = Quote All, 2 = Quote Non-numeric, 3 = Quote None.
-b, --no-doublequote: Whether or not double quotes are doubled in the input CSV file.
-p ESCAPECHAR, --escapechar ESCAPECHAR: Character used to escape the delimiter if --quoting 3 ("Quote None") is specified and to escape the QUOTECHAR if --no-doublequote is specified.
-z FIELD_SIZE_LIMIT, --maxfieldsize FIELD_SIZE_LIMIT: Maximum length of a single field in the input CSV file.
-e ENCODING, --encoding ENCODING: Specify the encoding of the input CSV file.
-S, --skipinitialspace: Ignore whitespace immediately following the delimiter.
-H, --no-header-row: Specify that the input CSV file has no header row. Will create default headers (a,b,c,...).
-K SKIP_LINES, --skip-lines SKIP_LINES: Specify the number of initial lines to skip before the header row (e.g. comments, copyright notices, empty rows).
-v, --verbose: Print detailed tracebacks when errors occur.
-l, --linenumbers: Insert a column of line numbers at the front of the output. Useful when piping to grep or as a simple primary key.
--zero: When interpreting or displaying column numbers, use zero-based numbering instead of the default 1-based numbering.
-V, --version: Display version information and exit.
--csv: Output results as a CSV, rather than text.
-n, --names: Display column names and indices from the input CSV and exit.
-c COLUMNS, --columns COLUMNS: A comma separated list of column indices, names or ranges to be examined, e.g. "1,id,3-5". Defaults to all columns.
--type: Only output data type.
--nulls: Only output whether columns contains nulls.
--unique: Only output counts of unique values.
--min: Only output smallest values.
--max: Only output largest values.
--sum: Only output sums.
--mean: Only output means.
--median: Only output medians.
--stdev: Only output standard deviations.
--len: Only output the length of the longest values.
--freq: Only output lists of frequent values.
--freq-count FREQ_COUNT: The maximum number of frequent values to display.
--count: Only output total row count.
-y SNIFF_LIMIT, --snifflimit SNIFF_LIMIT: Limit CSV dialect sniffing to the specified number of bytes. Specify "0" to disable sniffing entirely.