CAL(1) CAL(1) (NAME) cal - (SYNOPSIS) cal [options] [[[day] month] year] cal [options] [timestamp|monthname] (DESCRIPTION) cal . . month (1-12) . : . . . cal . . . ( ). . --reform . (OPTIONS) -1, --one . ( .) -3, --three . -n , --months number number . -S, --span . -s, --sunday . -m, --monday . -v, --vertical ( ncal(1)). --iso (proleptic Gregorian). . --reform . -j, --julian . (ordinal days) . . --reform . . : () () () () . julian POSIX julian . cal . DESCRIPTION . --reform val . . . val : o 1752 - (). . o gregorian - . cal . (proleptic Gregorian) . o iso - gregorian. ISO 8601 . o julian - . cal . DESCRIPTION . -y, --year . -Y, --twelve . -w, --week[=number] US ISO-8601. number . month number . number . NOTES . --color[=when] . when auto never always . when auto . --help . COLORS . -c, --columns=columns . auto . -h, --help . -V, --version . (PARAMETERS) ( 'cal 2020') : cal 89 . ( 'cal tomorrow' 'cal August') (timestamp) ( ) . "now" "today" "yesterday" "tomorrow" . "+" . "-" '+2days'. "+" "-" "left" "ago" ( '1 week ago'). ( 'cal 11 2020') (1 - 12) . ( 'cal 25 11 2020') (1-31) . . (NOTES) . --sunday --monday . . . (-m) ISO 8601 . (COLORS) terminal-colors.d(5) . /etc/terminal-colors.d/cal.disable cal /etc/terminal-colors.d/disable . $NO_COLOR . $XDG_CONFIG_HOME/terminal-colors.d $HOME/.config/terminal-colors.d . terminal-colors.d . cal : today . weeknumber --week=. weeks . header . workday . weekend ( ). : echo -e 'weekend 35\ntoday 1;41\nheader yellow' > $HOME/.config/terminal-colors.d/cal.scheme (HISTORY) cal AT&T UNIX . (BUGS) cal . . (Ge'ez) - . (SEE ALSO) terminal-colors.d(5) (REPORTING BUGS) . . (AVAILABILITY) cal util-linux . . util-linux 2.42.3 2026-09-02 CAL(1)