rs: Reshape tabular data

The utility rs can reshape a list of data points into a table for cleaner presentation:

• seq 7 | rs 0 2 = reshape list of data into N rows of 2 columns
• seq 7 | rs 4 0 = reshape list of data into 4 rows of N columns
• seq 7 | rs 4 3 = reshape list of data into 4 rows of 3 columns (including blank entries)

It can handle input separators and can reshape its own output:

• seq 7 | paste - - | rs -c 0 3 = reshape tab separated values
• seq 7 | rs 0 2 | rs 4 0 | rs 2 0 = reshape into 2 rows of N columns (finally)

It can right justify the data:

• jot 6 0 1000 | rs -j 0 2 = right justify into 2 columns

This is like combining paste with column -t but more targeted and flexible.