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Cron jobs and random times, within given hours
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Am I missing something or the maximum delay should be set to maxdelay=$((14*60/20))
– jenish Sakhiya
Oct 23 '19 at 4:34
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Why remove unused using directives in C#?
I'm wondering if there are any reasons (apart from tidying up source code) why developers use the "Remove Unused Usings " feature in Visual Studio 2008?
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Does a `+` in a URL scheme/host/path represent a space?
I am aware that a + in the query string of a URL represents a space. Is this also the case outside of the query string region? That is to say, does the following URL:
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
I tried researching the difference between cout , cerr and clog on the internet but couldn't find a perfect answer. I still am not clear on when to use which. Can anyone explain to me, through simple programs and illustrate a perfect situation on when to use which one?
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代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
报错信息：
3月 04, 2025 9:50:11 上午 com.google.appengine.tools.development.ApiProxyLocalImpl log
严重: javax.servlet.ServletContext log: Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract long com.google.appinv...
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...on the other hand, is perhaps misleadingly named: it truncates tables to reset the db -- the naming seems to reflect that you can test transactions within a test, not that the test is wrapped as a transaction!
– C S
Sep 20 '18 at 17:40
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Getting ssh to execute a command in the background on target machine
This is a follow-on question to the How do you use ssh in a shell script? question. If I want to execute a command on the remote machine that runs in the background on that machine, how do I get the ssh command to return? When I try to just include the ampersand (&) at the end of the command it ...
How do I check OS with a preprocessor directive?
I need my code to do different things based on the operating system on which it gets compiled. I'm looking for something like this:
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Find rows that have the same value on a column in MySQL
In a [member] table, some rows have the same value for the email column.
8 Answers
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Why is exception handling bad?
Google's Go language has no exceptions as a design choice, and Linus of Linux fame has called exceptions crap. Why?
15 Answ...