NAME sumart - Visualise a checksum SYNOPSIS sumart [rows columns] [checksum] DESCRIPTION The sumart utility creates a visualisation of a checksum using symbols and colours in a grid. If no checksum is specified, it is read from the standard input. Any symbol that is not a hexadecimal digit is silently discarded from the checksum. OPTIONS The sumart utility conforms to the Base Definitions volume of POSIX.1-2024, Section 12.2, Utility Syntax Guidelines. No options are supported. OPERANDS The following operands are supported: rows The number of rows tall the visualisation should be. colums The number of columns wide the visualisation should be. checksum The checksum to visualise. EXIT STATUS The following exit values are returned: 0 Successful completion. 1 An error occurred. SEE ALSO None.