On Sun, Apr 08, 2018 at 11:12:43PM -0700, Philip Guenther wrote:
| On Sun, Apr 8, 2018 at 10:54 PM, Robert Klein <[email protected]> wrote:
|
| > this works for me:
| >
| > date -r $(( $(date +%s) - 1 * 24 * 60 * 60 )) +%Y_%m_%d
| >
|
| Did you test that after 11pm on the day when daylight-saving time ends and
| the clock is turned back, resulting in a 25 hour long day?
For those special occassions there's:
date -j `date +%Y%m%d1200` +%s
Turning this into:
date -r $(($(date -j `date +%Y%m%d1200` +%s) - 86400)) +%Y_%m_%d
Less perl (and less typing) at the expense of a total of 3 invocations
of date. Although I loathe the natural language parsing options built
into Linux date(1), this sort of thing is rather convenient.
| I would use this:
| perl -MPOSIX=strftime,mktime -le '@d=localtime(); $d[3]--; mktime(@d);
| print strftime("%Y_%m_%d",@d)'
|
| Philip Guenther
Paul 'abolish DST now' de Weerd
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