cal - Displays a calendar
cal [month [year]]
Interfaces documented on this reference page conform to industry standards as follows:
cal: XPG4, XPG4-UNIX
Refer to the
reference page for more information
about industry standards and associated tags.
Names the month for which you want the calendar. It can be a number between 1 and 12 for January through December, respectively. If month is not specified, cal displays a calendar for the entire year, unless year is also omitted. Names the year for which you want the calendar. Because cal can display a calendar for any year from 1 to 9999, enter the full year rather than just the last two digits. If year is not specified, cal uses the current year.
If no operands are specified,
displays a calendar
for the current month.
The cal command writes to standard output a Gregorian calendar for the specified year or month.
For historical reasons, the cal command's Gregorian calendar is discontinuous. The display for September 1752 (cal 9 1752) jumps from Wednesday the 2nd to Thursday the 14th.
command checks the
environment variable and uses the correct headers for
the current locale. If
is not set,
checks the value of
LANG. If neither variable is set, you receive English headers.
The following exit values are returned:
An error occurred.
To display a calendar for February 1990, enter: cal 2 1990 To display a calendar for the year 84 A.D., enter: cal 84 To display a calendar for the current month, enter: cal
The following environment variables affect the execution of
Provides a default value for the internationalization variables
that are unset or null. If
is unset or null, the corresponding value from the default locale is used.
If any of the internationalization variables contain an invalid setting, the
utility behaves as if none of the variables had been defined.
If set to a non-empty string value, overrides the values of
all the other internationalization variables.
Determines the locale for the interpretation of sequences
of bytes of text data as characters (for example, single-byte as opposed to
multibyte characters in arguments).
Determines the locale for the format and contents of diagnostic
messages written to standard error.
Determines the format and contents of the calendar.
Determines the location of message catalogues for the processing
Determines the time zone used to calculate the value of the
Command and Shell User's Guide