cal - print a calendar
cal [[month] year ]
The cal utility writes a Gregorian calendar to standard output. If the year operand is specified, a calendar for that year is written. If no operands are specified, a calendar for the current month is written.
None.
The following operands are supported:
- month
- Specify the month to be displayed, represented as a decimal integer from 1 (January) to 12 (December). The default is the current month.
- year
- Specify the year for which the calendar is displayed, represented as a decimal integer from 1 to 9999. The default is the current year.
Not used.
None.
The following environment variables affect the execution of cal:
- LANG
- Provide a default value for the internationalisation variables that are unset or null. If LANG is unset or null, the corresponding value from the implementation-dependent default locale will be used. If any of the internationalisation variables contains an invalid setting, the utility will behave as if none of the variables had been defined.
- LC_ALL
If set to a non-empty string value, override the values of all the other internationalisation variables.
- LC_CTYPE
Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single- as opposed to multi-byte characters in arguments).
- LC_MESSAGES
Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error, and informative messages written to standard output.
- LC_TIME
Determine the format and contents of the calendar.
- NLSPATH
Determine the location of message catalogues for the processing of LC_MESSAGES .
- TZ
- Determine the timezone used to calculate the value of the current month.
Default.
The standard output is used to display the calendar, in an unspecified format.
Used only for diagnostic messages.
None.
None.
The following exit values are returned:
- 0
- Successful completion.
- >0
- An error occurred.
Default.
Note that:
cal 83
refers to A.D. 83, not 1983.
None.
None.
None.