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What generates the “text file busy” message in Unix?
... Use lsof to check what other processes are using it. You can use kill command to kill it if needed.
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How to convert wstring into string?
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using std::wcout.imbue(locale) should do the job aswell, and it has the benefit that it does not change any global state.
– smerlin
Jan 26 '11 at 15:22
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Piping both stdout and stderr in bash?
...t newer versions of bash have the &> operator, which (if I understand correctly), redirects both stdout and stderr to a file ( &>> appends to the file instead, as Adrian clarified).
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Why do you have to call .items() when iterating over a dictionary in Python?
...f least astonishment, in would also have to take such a tuple as its left-hand operand in the containment check.
How useful would that be? Pretty useless indeed, basically making if (key, value) in C a synonym for if C.get(key) == value -- which is a check I believe I may have performed, or wanted...
Running a cron job at 2:30 AM everyday
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crontab -e
add:
30 2 * * * /your/command
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Weird “[]” after Java method signature
I looked at some Java code today, and I found some weird syntax:
4 Answers
4
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Check if a string contains a substring in SQL Server 2005, using a stored procedure
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CHARINDEX() searches for a substring within a larger string, and returns the position of the match, or 0 if no match is found
if CHARINDEX('ME',@mainString) > 0
begin
--do something
end
Edit or from daniels answer, if you're wanting to find a word (and not subcomponents of wo...
Groovy / grails how to determine a data type?
... postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
What is the difference between a static and a non-static initialization code block
...static from the initializer block, it then becomes an instance initializer and so int a is initialized at construction.
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Exception.Message vs Exception.ToString()
..., containing the exception type, the message (from before), a stack trace, and all of these things again for nested/inner exceptions. More precisely, the method returns the following:
ToString returns a representation of the current exception that is intended to be understood by humans. Where the e...