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How to select the nth row in a SQL database table?
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Actually, from here php.about.com/od/mysqlcommands/g/Limit_sql.htm, if you wanted to grab the 15th entry wouldn't you do LIMIT 14, 1 (0th is the first element, 1 of length
– committedandroider
Feb 6 '1...
How to urlencode data for curl command?
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@kberg actually, this will only work for query data. curl will append a '?' followed by the urlencoded params. If you want to urlencode some url postfix (such as a CouchDB GET for some document id), then '--data-urlencode' won't work.
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Real life trading API [closed]
... this is something that the exchange has to support and your broker has to allow. Most exchanges I know of, do not allow automated trading without prior permission.
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SQLite error 'attempt to write a readonly database' during insert?
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Also, SELinux (if installed) must not be enforcing. Took me a day and a half to figure that one out.
– Steve V.
Dec 19 '10 at 8:31
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How do you use the ? : (conditional) operator in JavaScript?
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This is a one-line shorthand for an if-else statement. It's called the conditional operator.1
Here is an example of code that could be shortened with the conditional operator:
var userType;
if (userIsYoungerThan18) {
userType = "Minor";
} else {
userType = "Adult";
}
if (userIsY...
How to get CRON to call in the correct PATHs
I'm trying to get cron to call in the correct PATHs. When I run a Python script from shell the script runs fine as it uses the PATHs set in bashrc but when I use cron all the PATHs are not used from bashrc. Is there a file I can enter the PATHs into for cron like bashrc or a way to call the PATHs fr...
Regular expression for a hexadecimal number?
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If you're using Perl or PHP, you can replace
[0-9a-fA-F]
with:
[[:xdigit:]]
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follow
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How do you get a string to a character array in JavaScript?
...: 12.2.5 Array Initializer
spread is also referenced as "splat" (e.g. in PHP or Ruby or as "scatter" (e.g. in Python).
Demo
Try before buy
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How do I put an already-running process under nohup?
... stay in your current shell's process tree until you exit your shell) This allows you to see all the jobs that this shell started." (from [quantprinciple.com/invest/index.php/docs/tipsandtricks/unix/…)
– Dr. Jan-Philip Gehrcke
Mar 17 '11 at 13:46
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Example invalid utf8 string?
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In PHP:
$examples = array(
'Valid ASCII' => "a",
'Valid 2 Octet Sequence' => "\xc3\xb1",
'Invalid 2 Octet Sequence' => "\xc3\x28",
'Invalid Sequence Identifier' => "\xa0\xa1",
'Valid 3 Octet Sequ...