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What port is a given program using? [closed]
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netstat -b -a lists the ports in use and gives you the executable that's using each one. I believe you need to be in the administrator group to do this, and I don't know what security implications there are on Vista.
I usually add -n as well to make it a little...
Rails: How can I set default values in ActiveRecord?
... Rails 3.2+ - for earlier, use self.attributes.has_key?, and you need to a string instead of a symbol.
– Cliff Darling
Oct 22 '12 at 15:54
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Best way to store time (hh:mm) in a database
... line. ALWAYS consider all time zones.
C#
A DateTime renders nicely to a string in C#. The ToString(string Format) method is compact and easy to read.
E.g.
new TimeSpan(EventStart.Ticks - EventEnd.Ticks).ToString("h'h 'm'm 's's'")
SQL server
Also if you're reading your database seperate to y...
What is the benefit of using $() instead of backticks in shell scripts?
..."x is `sed ... <<<\"$y\"`"
or writing something like:
IPs_inna_string=`awk "/\`cat /etc/myname\`/"'{print $1}' /etc/hosts`
because $() uses an entirely new context for quoting
which is not portable as Bourne and Korn shells would require these backslashes, while Bash and dash don't.
S...
How to choose the id generation strategy when using JPA and Hibernate
...quence.
uuid
uses a 128-bit UUID algorithm to generate identifiers of type string that are unique within a network (the IP address is used). The UUID is encoded as a string of 32 hexadecimal digits in length.
guid
uses a database-generated GUID string on MS SQL Server and MySQL.
native
selects ident...
Is it possible to break a long line to multiple lines in Python [duplicate]
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This works because python automatically concatenates the strings inside the parenthesis, without the need of putting a + operator.
– blueFast
Oct 17 '17 at 14:30
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How do I include negative decimal numbers in this regular expression?
...\d*(\.\d+)?$
I verified it in Rubular with these values:
10.00
-10.00
and both matched as expected.
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The definitive guide to form-based website authentication [closed]
...eartext password ("correcthorsebatterystaple") into a long, random-looking string, which is a lot safer to store in your database. To verify a login, you run the same hash function on the entered password, this time passing in the salt and compare the resulting hash string to the value stored in you...
get current url in twig template?
...ute_parameters won't work if you have some additional params in your query string. You could use app.request.query.all instead.
– wdev
Nov 26 '12 at 17:42
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How do I concatenate const/literal strings in C?
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In C, "strings" are just plain char arrays. Therefore, you can't directly concatenate them with other "strings".
You can use the strcat function, which appends the string pointed to by src to the end of the string pointed to by de...