\c [size]

Show or set console maximum rows and columns. size is a pair of integers: rows and columns. The default 25 80; values are coerced to the range [10,2000].

These settings determine when q truncates output with ..

You do not usually need to set this

If the environment variables LINES and COLUMNS are found they’ll be taken as the default value. See Bash documentation for shopt parameter checkwinsize to make sure they’re reset as needed.

q)\c
45 160
q)\c 5 5
q)\c
10 10
q)til each 20+til 10
0 1 2 3..
0 1 2 3..
0 1 2 3..
0 1 2 3..
0 1 2 3..
0 1 2 3..
0 1 2 3..
..