|CAL(1P)||POSIX Programmer's Manual||CAL(1P)|
cal [[month] year]
If no operands are given, cal shall produce a one-month calendar for the current month in the current year. If only the year operand is given, cal shall produce a calendar for all twelve months in the given calendar year. If both month and year operands are given, cal shall produce a one-month calendar for the given month in the given year.
- Specify the month to be displayed, represented as a decimal integer from 1 (January) to 12 (December).
- Specify the year for which the calendar is displayed, represented as a decimal integer from 1 to 9999.
- Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of POSIX.1‐2017, Section 8.2, Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
- If set to a non-empty string value, override the values of all the other internationalization variables.
- Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments).
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.
- Determine the format and contents of the calendar.
- Determine the location of message catalogs for the processing of LC_MESSAGES.
- Determine the timezone used to calculate the value of the current month.
- Successful completion.
- An error occurred.
The following sections are informative.
refers to A.D. 83, not 1983.
write a one-month calendar for the current calendar month (no matter what the current year is) in the year 2000 to standard output. This did not match historic practice in any known version of the cal utility. The description has been updated to match historic practice. When only the year operand is given, cal writes a twelve-month calendar for the specified year.
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
|2017||IEEE/The Open Group|