column-check

Look at which interfaces allow for 80, 100, and 120 characters.

80 Columns

         1         2         3         4         5         6         7         8
12345678901234567890123456789012345678901234567890123456789012345678901234567890

100 Columns

         1         2         3         4         5         6         7         8         9        10
1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890

120 Columns

         1         2         3         4         5         6         7         8         9        10        11        12
123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890