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How do I use the nohup command without getting nohup.out?
...'re using nohup, that probably means you want to run the command in the background by putting another & on the end of the whole thing:
nohup command >/dev/null 2>&1 & # runs in background, still doesn't create nohup.out
On Linux, running a job with nohup automatically closes it...
How might I convert a double to the nearest integer value?
... answered Mar 11 '09 at 4:33
nickfnickf
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How to remove non-alphanumeric characters?
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Sounds like you almost knew what you wanted to do already, you basically defined it as a regex.
preg_replace("/[^A-Za-z0-9 ]/", '', $string);
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How do I use ROW_NUMBER()?
...ROM myTable
to get the count.
And for the second question, the primary key of the row is what should be used to identify a particular row. Don't try and use the row number for that.
If you returned Row_Number() in your main query,
SELECT ROW_NUMBER() OVER (Order by Id) AS RowNumber, Field1,...
split string only on first instance of specified character
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Use capturing parentheses:
"good_luck_buddy".split(/_(.+)/)[1]
"luck_buddy"
They are defined as
If separator contains capturing parentheses, matched results are
returned in the array.
So in this case we want to split at _.+ (i.e. split separator being...
Delete all rows in an HTML table
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Keep the <th> row in a <thead> and the other rows in a <tbody> then replace the <tbody> with a new, empty one.
i.e.
var new_tbody = document.createElement('tbody');
populate_with_new_rows(new_tbody);...
What does the construct x = x || y mean?
...".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with boolean expressions is common in Perl too. With the expression:
a OR b
it evaluates to true if either a or b is true. So if a is true you don't need to check b at all. This is called short-circ...
How can I check if a scrollbar is visible?
Is it possible to check the overflow:auto of a div?
19 Answers
19
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Grepping a huge file (80GB) any way to speed it up?
...ightygigsfile.sql
It will also be faster if you copy your file to RAM disk.
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Generic type conversion FROM string
.... These properties simply have a name and a value. Ideally, what I would like is to be able to add typed properties, so that the "value" returned is always of the type that I want it to be.
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