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Cal command to display 5 months ?

 
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# 8  
Old 10-20-2013
Quote:
Originally Posted by sea
You could try:
Code:
for months in 6 7 8 9 10;do cal $months $(date +'%Y');done

That won't work for Jan, Feb, Nov, and Dec.


Quote:
Originally Posted by Imane
I have another question related to this subject, I have found in this website : (unix.com/man-page/Linux/1/cal/ Man Page for cal) that I can use the command cal with these options :
Code:
cal [-3hj] [-A number] [-B number] -m month [year]

...
But when I try it, I get the same message as you did (invalid option -- 'A') . I don't understand why Smilie
That documentation probably doesn't apply to your cal implemenation (it looks like the FreeBSD implementation). Those options are non-standard. Read your system's man cal instead.

Regards,
Alister
This User Gave Thanks to alister For This Post:
Imane
# 9  
Old 10-21-2013
Quote:
Originally Posted by alister
That won't work for Jan, Feb, Nov, and Dec.
It actually did work for me when I tried Jan, Feb, Nov and Dec.
But your second answer is true Smilie ! Thank you Smilie
# 10  
Old 10-21-2013
Quote:
Originally Posted by Imane
It actually did work for me when I tried Jan, Feb, Nov and Dec.
That for-loop from post #2 won't work with those four months because, even if you wrap the months using modulo-12 arithmetic, the year is left unadjusted.

Regards,
Alister
This User Gave Thanks to alister For This Post:
Imane
# 11  
Old 10-21-2013
Yes, those 5! numbers represent the 5 months to be shown, i dont know which 5 months he wants.
Year is untouched, using the current, since i dont know which year he want to have shown either.

If you want to display the COMLPETE year 2042, your supposed to use:
Code:
cal -y 2042

Regards
sea
# 12  
Old 10-21-2013
Quote:
Originally Posted by alister
That for-loop from post #2 won't work with those four months because, even if you wrap the months using modulo-12 arithmetic, the year is left unadjusted.

Regards,
Alister
Oh yeees, now I understand ! You're right, if I choose November for example, then in the two next months, I obviously have December and January of the SAME year, which isn't what I want :/ !
Thanks for highlighting this, I didn't pay attention to that !
# 13  
Old 10-21-2013
Started to get fun on this so i prepared this to be used as executable file in either (on linux):
* ~/bin
* ~/.local/bin
* /bin
* /usr/bin
Code:
#!/bin/sh
ME=$(basename $0)	# This is the filename without the path
help_text="\nUsage: $ME MONTH [YEAR=$(date +'%Y') [RANGE=2  [STEP=1]]]
		\rExample:\t$ME $(date +'%m') $(date +'%Y')
		\r\t\t$ME $(date +'%m') $(date +'%Y') 4 3\n"
[[ -z $1 ]] && printf  "$help_text\n" && exit 99

showMonths_function () {  MONTH=$1 ; YEAR=$2 ; RANGE=$3 ; STEP=$4
	[[ -z $2 ]] && YEAR=$(date +'%Y')
	[[ -z $3 ]] && RANGE=2
	[[ -z $4 ]] && STEP=1
	FROM=$[ $MONTH - $RANGE ]
	TO=$[ $MONTH + $RANGE ]
	for months in $(seq $FROM $STEP $TO );do cal $months $YEAR;done
}
showMonths_function $@

Then use like:
Code:
showMonths 6 2014 4 2

Shows: Feb, Apr, Jun, Aug, Oct
As it shows June 2014 with a range of 4 months, but only showing every 2nd.

The 3rd argument, to alter the range, is optional!
Default is 2.
4th argument could alter the steps it takes, 1 for each, 2 for every 2nd. etc.
Default is 1.

Code:
showMonths 6 2022

Shows April-August of 2022

Or even just:
Code:
showMonths 6

For the same timerange of the current year.

Code:
99 ~ $ showMonths 6
     April 2013     
Mo Di Mi Do Fr Sa So
 1  2  3  4  5  6  7
 8  9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30

      Mai 2013      
Mo Di Mi Do Fr Sa So
       1  2  3  4  5
 6  7  8  9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31

      Juni 2013     
Mo Di Mi Do Fr Sa So
                1  2
 3  4  5  6  7  8  9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30

      Juli 2013     
Mo Di Mi Do Fr Sa So
 1  2  3  4  5  6  7
 8  9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31

     August 2013    
Mo Di Mi Do Fr Sa So
          1  2  3  4
 5  6  7  8  9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31

Hope this helps Smilie
showMonths.sh (607 Bytes) 
Last edited by sea; 10-22-2013 at 01:18 PM.. Reason: code fixed
 
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