Calcol is a wrapper around the cal command from util-linux that allows you to display a colorized calendar. Since 2023, cal can be colorized:
util-linux/util-linux#2053
but months and week headers cannot be customized separately, and colored headers straddle separate months.
Calcol arguably looks a bit better, with months and week headers that can be customized independently, and header backgrounds that do not straddle separate months. Calcol also allows you to customize year numbers, and accepts terminal colors in the 0-255 range instead of being limited to the 16 ANSI colors.
This is free and open source software.
Website: github.com/ftonneau/calcol
Support:
Developer: François Tonneau
License: MIT License

Related Software
| Terminal-Based Calendars | |
|---|---|
| calcurse | Calendar and scheduling application for the command line |
| calcure | Modern TUI calendar and task manager |
| khal | Built on the iCalendar and vdir |
| calendar.vim | Calendar application for Vim |
| vdirsyncer | Synchronizing calendars and addressbooks |
| Wyrd | Text-based front-end to Remind |
| vimalender | Terminal calendar application with vim-style keybindings |
| carl | Mimics the various cal implementations with additional features |
| ncal | Offers an alternative layout, more options and the date of Easter. |
| when | Extremely simple personal calendar program |
| TimeMap | Combines a Calendar, Diary, Todo List, Quick Note, File Manager and Tags |
| lvsk | Minimalist design and monochromatic pastel aesthetics. |
| kal | Package for finding public holidays, Easter, notable days, and more |
| calcol | Wrapper to colorize cal |
| chroncal | Manages events, tasks and journal entries |
Read our verdict in the software roundup.
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