Common Linux commands (30)-cal

Common Linux commands (30)-cal

The cal command can be used to display calendars in the Gregorian calendar. The Gregorian calendar is an international calendar, also known as the Gregorian calendar. The "Gregorian Calendar", also known as the "solar calendar", is a year when the earth is traveling around the sun for a week. It is used by Western countries and is also known as the "Western calendar ".

1.Command Format:

Cal [parameter] [month] [year]

 

2.Command function:

Used to view time information such as calendar. If there is only one parameter, it indicates the year (1-9999). If there are two parameters, it indicates the month and the year.

 

3.Command parameters:

-1: displays the calendar of a month.

-3 displays the calendar of the previous month, current month, and next month of the system.

-S indicates that Sunday is the first day of a week. The default format is

-M: display Monday as the first day of a week.

-J indicates the day of the current year (the date of the year is calculated by day, and the number of days of the current month in the year is displayed by default from January 1, January 1)

-Y: displays the calendar of the current year.

 

4.Instance used:

Instance 1:Show current month calendar

Command: cal

 

[Root @ localhost ~] # Cal October 12, 1516 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2223 17 18 19 20 21 2930 24 25 26 27 28 31 [root @ localhost ~] #

 

Example 2:Displays the calendar of a specified month.

Command: cal 9 2012

 

[Root @ localhost ~] # Cal 9 2012 November 12, 1516 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2223 17 19 20 21 2930 24 25 26 27 28

 

Example 3:Show calendar month (2013)
Command:

Cal-y 2013

Cal 2013

 

2013       January               February                 MarchSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa       1  2  3  4  5                   1  2                   1  2 6  7  8  9 10 11 12    3  4  5  6  7  8  9    3  4  5  6  7  8  913 14 15 16 17 18 19   10 11 12 13 14 15 16   10 11 12 13 14 15 1620 21 22 23 24 25 26   17 18 19 20 21 22 23   17 18 19 20 21 22 2327 28 29 30 31         24 25 26 27 28         24 25 26 27 28 29 30                                              31        April                   May                   JuneSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa    1  2  3  4  5  6             1  2  3  4                      1 7  8  9 10 11 12 13    5  6  7  8  9 10 11    2  3  4  5  6  7  814 15 16 17 18 19 20   12 13 14 15 16 17 18    9 10 11 12 13 14 1521 22 23 24 25 26 27   19 20 21 22 23 24 25   16 17 18 19 20 21 2228 29 30               26 27 28 29 30 31      23 24 25 26 27 28 29                                              30        July                  August                SeptemberSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa    1  2  3  4  5  6                1  2  3    1  2  3  4  5  6  7 7  8  9 10 11 12 13    4  5  6  7  8  9 10    8  9 10 11 12 13 1414 15 16 17 18 19 20   11 12 13 14 15 16 17   15 16 17 18 19 20 2121 22 23 24 25 26 27   18 19 20 21 22 23 24   22 23 24 25 26 27 2828 29 30 31            25 26 27 28 29 30 31   29 30       October               November               DecemberSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa       1  2  3  4  5                   1  2    1  2  3  4  5  6  7 6  7  8  9 10 11 12    3  4  5  6  7  8  9    8  9 10 11 12 13 1413 14 15 16 17 18 19   10 11 12 13 14 15 16   15 16 17 18 19 20 2120 21 22 23 24 25 26   17 18 19 20 21 22 23   22 23 24 25 26 27 2827 28 29 30 31         24 25 26 27 28 29 30   29 30 31

 

Example 4:Display the number of days from January 1, January 1

Command: cal-j

 

[Root @ localhost ~] # Cal-j August 12, December 20 five six 1234 336337 338 339 340 341 342 343344 345 346 347 348 349 350351 352 353 354 355 356 357358 359 360 361 362 363 364365 366 [root @ localhost ~] #

 

Example 5:Monday is shown in the first column

Command: cal-m

 

[Root @ localhost ~] # Cal-m October 12 October 5 th six days 1 2 3 4 5 6 7 8 910 11 12 13 14 15 1617 18 19 20 22 2324 25 25 26 27 28 29 3031 [root @ localhost ~] #