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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...lHost *:80>
ServerName mail.huatuo.com
DocumentRoot /var/www/extmail/html/
ScriptAlias /extmail/cgi /var/www/extmail/cgi
Alias /extmail /var/www/extmail/html
SuexecUserGroup postfix postfix
ScriptAlias /extman/cgi /var/www/extman/cgi
Ali...
Generating a PNG with matplotlib when DISPLAY is undefined
...ered Dec 2 '16 at 11:59
Matthias123Matthias123
79266 silver badges1313 bronze badges
...
How to get a variable value if variable name is stored as string?
...ariable_value="\$$variable_name"
fi
echo "$variable_value"
}
test=123
get_value_of test
# 123
test="\$(echo \"something nasty\")"
get_value_of test
# $(echo "something nasty")
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How to properly create an SVN tag from trunk?
...revision of the trunk and "tag" it as well. the command: svn copy -r 123 "svn.example.com/project/trunk" "svn.example.com/project/tags/1.0" -m "Tagging, but using older revision (123)."
– granadaCoder
Oct 18 '11 at 16:39
...
How to force R to use a specified factor level as reference in a regression?
...
See the relevel() function. Here is an example:
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor ...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...works for submit-input-images, they stay clickable.
See live demo: http://www.audenaerde.org/csstricks.html#imagereplacecss
Enjoy!
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How to get a list of installed android applications and pick one to run
...ng with a server. Is there any guidelines?
– dowjones123
Jun 30 '15 at 20:07
1
@dowjones123 Did u...
How do I (or can I) SELECT DISTINCT on multiple columns?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
Why doesn't C# support the return of references?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
Canvas is stretched when using CSS but normal with “width” / “height” properties
...he size of the box in which it will be shown.
This is explained at http://www.whatwg.org/html#attr-canvas-width (needs JS) or http://www.whatwg.org/c#attr-canvas-width (will probably eat your computer):
The canvas element has two attributes to control the size of the element's bitmap: width and...