dateseq - Generate a sequence of dates
This document describes version 0.100 of dateseq (from Perl distribution App-dateseq), released on 2020-04-30.
Usage:
% dateseq [--business] [--business6] [--exclude-dow-json=s] [--exclude-dow=s+] [--exclude-month-json=s] [--exclude-month=s+] [-f=s] [--format-class-attrs-json=s] [--format-class-attrs=s] [--format-class=s] [--format=name] [--header=s] [--include-dow-json=s] [--include-dow=s+] [--include-month-json=s] [--include-month=s+] [--json] [--limit=s] [-n=s] [--(no)naked-res] [--no-business] [--no-business6] [--nobusiness] [--nobusiness6] [--page-result[=program]] [-r] [--reverse] [--strftime=s] [from] [to] [increment]
Examples:
Generate "infinite" dates from today:
% dateseq
Generate dates from 2015-01-01 to 2015-01-31:
% dateseq 2015-01-01 2015-01-31 2015-01-01 2015-01-02 ... 27 more lines ... 2015-01-30 2015-01-31
Generate dates from yesterday to 2 weeks from now:
% dateseq yesterday "2 weeks from now" 2020-04-29T00:00:00 2020-04-30T00:00:00 ... 12 more lines ... 2020-05-13T00:00:00 2020-05-14T00:00:00
Generate dates from 2015-01-31 to 2015-01-01 (reverse):
% dateseq 2015-01-31 2015-01-01 -r 2015-01-31 2015-01-30 ... 27 more lines ... 2015-01-02 2015-01-01
Generate "infinite" dates from 2015-01-01 (reverse):
% dateseq 2015-01-01 -r
Generate 10 dates from 2015-01-01:
% dateseq 2015-01-01 -n 10 2015-01-01 2015-01-02 ... 6 more lines ... 2015-01-09 2015-01-10
Generate dates with increment of 3 days:
% dateseq 2015-01-01 2015-01-31 -i P3D 2015-01-01 2015-01-04 ... 7 more lines ... 2015-01-28 2015-01-31
Generate first 20 business days (Mon-Fri) after 2015-01-01:
% dateseq 2015-01-01 --business -n 20 -f "%Y-%m-%d(%a)" 2015-01-01(Thu) 2015-01-02(Fri) 2015-01-05(Mon) 2015-01-06(Tue) 2015-01-07(Wed) ... 11 more lines ... 2015-01-23(Fri) 2015-01-26(Mon) 2015-01-27(Tue) 2015-01-28(Wed)
Generate first 5 non-business days (Sat-Sun) after 2015-01-01:
% dateseq 2015-01-01 --no-business -n 5 2015-01-03 2015-01-04 2015-01-10 2015-01-11 2015-01-17
Show Mondays, Wednesdays, and Fridays between 2015-01-01 and 2015-02-28:
% dateseq 2015-01-01 2015-02-28 --include-dow Mo,We,Fr -f "%Y-%m-%d(%a)"
Show dates (except Mondays) after 2015-01-01 and 2015-02-28:
% dateseq 2015-01-01 2015-02-28 --exclude-dow Mo -f "%Y-%m-%d(%a)"
Generate a CSV data:
% dateseq 2010-01-01 2015-01-31 -f "%Y,%m,%d" --header "year,month,day" year,month,day 2010,01,01 ... 1854 more lines ... 2015,01,30 2015,01,31
Generate periods (YYYY-MM):
% dateseq 2010-01-01 2015-12-31 -i P1M -f "%Y-%m" 2010-01 2010-02 ... 68 more lines ... 2015-11 2015-12
List non-holidays in 2015 (using Indonesian holidays):
% setop --diff <(dateseq 2015-01-01 2015-12-31) <(list-id-holidays --year 2015) 2015-01-02 2015-01-04 2015-01-05 2015-01-06 2015-01-07 ... 336 more lines ... 2015-12-28 2015-12-29 2015-12-30 2015-12-31
List non-holidays business days in 2015 (using Indonesian holidays):
% setop --diff <(dateseq 2015-01-01 2015-12-31 --business) <(list-id-holidays --year 2015) 2015-01-02 2015-01-05 2015-01-06 2015-01-07 2015-01-08 ... 236 more lines ... 2015-12-28 2015-12-29 2015-12-30 2015-12-31
Use with fsql:
% dateseq 2010-01-01 2015-12-01 -f "%Y,%m" -i P1M --header "year,month" | fsql --add-csv - --add-csv data.csv -F YEAR -F MONTH 'SELECT year, month, data1 FROM stdin WHERE YEAR(data.date)=year AND MONTH(data.date)=month'
This utility is similar to Unix seq command, except that it generates a sequence of dates.
* marks required options.
*
Starting date.
Add a header row.
Only generate a certain amount of numbers.
Decrement instead of increment.
End date, if not specified will generate an infinite* stream of dates.
Only list business days (Mon-Fri), or non-business days.
Only list business days (Mon-Sat), or non-business days.
Do not show dates with these day-of-weeks (JSON-encoded).
See --exclude-dow.
--exclude-dow
Do not show dates with these day-of-weeks.
Can be specified multiple times.
Do not show dates with these month numbers (JSON-encoded).
See --exclude-month.
--exclude-month
Do not show dates with these month numbers.
Only show dates with these day-of-weeks (JSON-encoded).
See --include-dow.
--include-dow
Only show dates with these day-of-weeks.
Only show dates with these month numbers (JSON-encoded).
See --include-month.
--include-month
Only show dates with these month numbers.
Arguments to pass to constructor of DateTime::Format::* class (JSON-encoded).
See --format-class-attrs.
--format-class-attrs
Arguments to pass to constructor of DateTime::Format::* class.
Use a DateTime::Format::* class for formatting.
By default, <pm:DateTime::Format::Strptime> is used with pattern set from the <strftime> option.
strftime() format for each date.
Default is `%Y-%m-%d`, unless when hour/minute/second is specified, then it is `%Y-%m-%dT%H:%M:%S`.
`dateseq` actually uses <pm:DateTimeX::strftimeq>, so you can embed Perl code for flexibility. For example:
% dateseq 2019-11-19 2019-11-25 -f '%Y-%m-%d%( $_->day_of_week == 7 ? "su" : "" )q'
will print something like:
2019-11-19 2019-11-20 2019-11-21 2019-11-22 2019-11-23 2019-11-24su 2019-11-25
Choose output format, e.g. json, text.
Default value:
undef
Set output format to json.
When outputing as JSON, strip result envelope.
0
By default, when outputing as JSON, the full enveloped result is returned, e.g.:
[200,"OK",[1,2,3],{"func.extra"=>4}]
The reason is so you can get the status (1st element), status message (2nd element) as well as result metadata/extra result (4th element) instead of just the result (3rd element). However, sometimes you want just the result, e.g. when you want to pipe the result for more post-processing. In this case you can use `--naked-res` so you just get:
[1,2,3]
Filter output through a pager.
Display help message and exit.
Display program's version and exit.
This script has shell tab completion capability with support for several shells.
To activate bash completion for this script, put:
complete -C dateseq dateseq
in your bash startup (e.g. ~/.bashrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.
It is recommended, however, that you install modules using cpanm-shcompgen which can activate shell completion for scripts immediately.
To activate tcsh completion for this script, put:
complete dateseq 'p/*/`dateseq`/'
in your tcsh startup (e.g. ~/.tcshrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.
It is also recommended to install shcompgen (see above).
For fish and zsh, install shcompgen as described above.
Please visit the project's homepage at https://metacpan.org/release/App-dateseq.
Source repository is at https://github.com/perlancar/perl-App-dateseq.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-dateseq
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
durseq. Produce sequence of date durations.
seq.
seq-pl. Perl variant of seq.
perlancar <perlancar@cpan.org>
This software is copyright (c) 2020, 2019, 2016, 2015 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install App::dateseq, copy and paste the appropriate command in to your terminal.
cpanm
cpanm App::dateseq
CPAN shell
perl -MCPAN -e shell install App::dateseq
For more information on module installation, please visit the detailed CPAN module installation guide.