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stty

Set options for a terminal device interface. More information: https://www.gnu.org/software/coreutils/manual/html_node/stty-invocation.html.

Display all settings for the current terminal:

stty -a

Set the number of rows:

stty rows {{rows}}

Set the number of columns:

stty cols {{cols}}

Get the actual transfer speed of a device:

stty -f {{path/to/device_file}} speed

Reset all modes to reasonable values for the current terminal:

stty sane