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Recommendation for compressing JPG files with ImageMagick
...(comprobed compression)
a very tiny gausssian blur to optimize the size (0.05 or 0.5 of radius) depends on the quality and size of the picture, this notably optimizes the size of the jpeg.
Strip any comment or exif tag
in imagemagick should be
convert -strip -interlace Plane -gaussian-blur 0.05 -...
Printing leading 0's in C?
...
printf("%05d", zipCode);
The 0 indicates what you are padding with and the 5 shows the length of the integer number. For example if you use "%02d" (Useful for dates) this would only pad zeros for numbers in the ones column ie.(06 in...
How do I import CSV file into a MySQL table?
...<pre> first_name,last_name,dob,phone_number,email, name,lastName,12-05-2018,54545,faiz@gmail.com, name1,lastName1,2018-05-12,456,faiz1@gmail.com, name2,lastName2,2018-05-12,456,faiz2@gmail.com, name3,lastName3,2018-05-22,456,faiz3@gmail.com, name4,lastName4,1988-05-22,456,faiz4@gmail.com, nam...
Compare two DataFrames and output their differences side-by-side
... Date
111 Jack True 2013-05-01 12:00:00
112 Nick 1.11 False 2013-05-12 15:05:23
Zoe 4.12 True ''',
'''\
id Name score isE...
Where do I find the current C or C++ standard documents?
...git
2018-11-26: N4791 git
2018-10-08: N4778 git
2018-07-07: N4762 git
2018-05-07: N4750 git
2018-04-02: N4741 git
2018-02-12: N4727 git
2017-11-27: N4713 git
2017-10-16: N4700 git
2017-07-30: N4687 git
This seems to be the new standard:
These version requires Authentication
2017-03-21: N4660 is the ...
How to pad zeroes to a string?
...|
edited Nov 25 '19 at 20:05
answered Dec 3 '08 at 22:42
Ha...
`date` command on OS X doesn't have ISO 8601 `-I` option?
...utes also include time with UTC offset.
$ date +%F # -I or +%Y-%m-%d
2013-05-03
$ date +%FT%T%z # -Iseconds or +%Y-%m-%dT%H:%M:%S%z
2013-05-03T15:59:24+0300
$ date +%FT%H:%M # -Iminutes or +%Y-%m-%dT%H:%M%z
2013-05-03T15:59+0300
-u is like TZ=UTC. +00:00 can be replaced with Z.
$ date -u +%FT%TZ...
Which timestamp type should I choose in a PostgreSQL database?
...W();
now
-------------------------------
2011-05-27 15:47:58.138995-07
(1 row)
test=> SELECT NOW() AT TIME ZONE 'UTC';
timezone
----------------------------
2011-05-27 22:48:02.235541
(1 row)
Note that AT TIME ZONE 'UTC' strips time zone info a...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...sHealthPoll] replSet member 192.168.1.136:27017 is up
Sun Dec 29 20:26:24.051 [rsSync] replSet SECONDARY
Sun Dec 29 20:26:25.053 [rsHealthPoll] replset info 192.168.1.136:27017 thinks that we are down
Sun Dec 29 20:26:25.053 [rsHealthPoll] replSet member 192.168.1.136:27017 is now in state STARTU...
SQL SERVER: Get total days between two dates
...
SQL Server DateDiff
DECLARE @startdate datetime2 = '2007-05-05 12:10:09.3312722';
DECLARE @enddate datetime2 = '2009-05-04 12:10:09.3312722';
SELECT DATEDIFF(day, @startdate, @enddate);
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