NAME

tsv - general tsv file mangler

USAGE

tsv [options] file(s)

OPTIONS

--show			Display column names
-f --cut COL,COL,COL	like cut(1) but uses column names
--rotate		Turn columsn to rows
--matchup FILE		Rotate, grabbing header from FILE
--validate		Discards rows that have wrong column count
-n --head COUNT	Only process COUNT lines
--default VALUE	Replace empty values with VALUE
--grep COLS PATTERN	Search for pattern in cols
--select COLS CODE	Eval code on cols, output if returns true
--help			Display man page

DESCRIPTION

tsv is a collection of small tools for manipulating and reporting on TSV (tab separated values) files.

--show

Displays a numbered list of the columns

--cut COLUMN_NAME(S)

Outputs a new TSV with just the named columns. Columns must be named; separate column names with comma ,.

--rotate

Turn the columns into rows and the rows into columns.

--matchup FILE

Grab the first row from FILE and then rotate. Usually this is used when with grep:

grep stuff file.tsv | tsv --match file.tsv 

--grep COLUMNS PATTERN

Look for PATTERN in COLUMNS (comma separate list, names or numbers)

--select CODE

Evaluate CODE. Each column will be in the variable $colname. A true value from the code will cause the line to print. Do not use return: the code is inside a while loop, not a sub.

--validate

Only output rows that have the same number of columns as the header line.

--default VALUE

Replace empty values with VALUE. This can be combined with --validate.

-n --head COUNT

Only process COUNT lines of input. This can be combined with all the other options except --show.

LICENSE

This package may be used and redistributed under the terms of either the Artistic 2.0 or LGPL 2.1 license.