[plamo:24029] Re: date

[OOSATO,Kazzrou]

大里です。

> From: KOJIMA
> Subject: [plamo:24026] Re: date
> Date: Sun, 31 Oct 2004 11:17:05 +0900 (JST)

> たまたま手元で動かしていた Fedora Core2 の date は coreutils 由来のも
> のになっていて，一般常識的な「月末」を返すようになっているみたい．
> 
> [kojima@localhost kojima]$ date --version
> date (coreutils) 5.2.1
> Written by David MacKenzie.
> 
> Copyright (C) 2004 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> [kojima@localhost kojima]$ date --date "-1 month" +%m
> 09
> [kojima@localhost kojima]$ date --date "+1 month" +%m
> 11
> [kojima@localhost kojima]$ date --date "+2 month" +%m
> 12
> [kojima@localhost kojima]$ date --date "-2 month" +%m
> 08

  む？うちの FC2 と違う。
[kazz@orbiter kazz]$ date
Sun Oct 31 12:58:40 JST 2004
[kazz@orbiter kazz]$ date --version
date (coreutils) 5.2.1
Written by David MacKenzie.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[kazz@orbiter kazz]$ date
Sun Oct 31 13:00:32 JST 2004
[kazz@orbiter kazz]$ for i in -2 -1 0 1 2; do date --date "${i} month" +%Y/%m/%d; done
2004/08/31
2004/10/01
2004/10/31
2004/12/01
2004/12/31

  なぜだろう？。。。。

-- 
  kazz