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What does `kill -0 $pid` in a shell script do?
Basically, what signal does '0' represent, because here I see SIGNAL numbers starting from 1.
6 Answers
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How to clear APC cache entries?
...I'm wondering why isn't a cronjob making a graceful apache2 restart ideal? What are some of the downsides to this approach?
– user2028856
Jan 4 '14 at 17:44
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Can you remove elements from a std::list while iterating through it?
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@enthusiasticgeek, what happens if i==items.begin()?
– MSN
Mar 19 '12 at 18:36
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Format a datetime into a string with milliseconds
...his is the actual solution that should be accepted. And the isoformat() is what I need for export to GPX format, thanks a lot!
– Filip Happy
Mar 7 at 0:18
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
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@DennisWilliamson correct, that's what I tried to mean. Can't edit my comment for some reason.
– João Cunha
Jan 24 '15 at 18:44
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Where to place the 'assets' folder in Android Studio?
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What would be the link to this folder in a java file?
– VeeK
May 19 '17 at 5:05
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Can I catch multiple Java exceptions in the same catch clause?
... Note that your Java 6 example breaks the compiler's ability to tell what will be thrown from where.
– MichaelBlume
Feb 6 '13 at 19:39
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How do I set the figure title and axes labels font size in Matplotlib?
...int("figure.titlesize" in mpl.rcParams.keys())'. Result is 1.5.1, True. 1) What version of matplotlib are you using? What version of Python? 2) Could it be a bug where for some reason it accepts str but not unicode in Py2?
– Mad Physicist
May 30 '16 at 1:18
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NPM clean modules
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@Ciastopiekarz ? That's what my answer says above?
– Lucas
Jan 20 '19 at 2:35
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Logic to test that 3 of 4 are True
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I suggest writing the code in a manner that indicates what you mean. If you want 3 values to be true, it seems natural to me that the value 3 appears somewhere.
For instance, in C++:
if ((int)a + (int)b + (int)c + (int)d == 3)
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This is well defined in C++: the standar...