Get The Number Of Columns And Rows In A Terminal Window With ENV Vars

ENV Vars

Both bash and zsh set environmental vars for the number of columns and lines/rows in a terminal window. For example:

echo $COLUMNS

-- results

56

echo $ROWS

-- results

38

Not all shells set these ENV vars. Determining that is left as an exercise for the reader
There's also al tputs command is that can provide the info (link below)

-- end of line --

Use tputs To Get The Number Of Columns And Lines/Rows Count In A Terminal Window On A Mac