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What does `kill -0 $pid` in a shell script do?
...pages:
kill(1)
$ man 1 kill
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If sig is 0, then no signal is sent, but error checking is still performed.
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kill(2)
$ man 2 kill
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If sig is 0, then no signal is sent, but error checking is still performed; this
can be used to check for the existence of a process ID or process group ID.
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Build error: You must add a reference to System.Runtime
...e that uninstalling VS2013 triggered this but I do not know that as fact. Error only surfaced in Views that referenced X-PagedList. Adding reference to project web.config (not views web.config) fixed it.
– Greg Terrell
Aug 26 '16 at 18:33
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CocoaPods Errors on Project Build
I'm unable to build a project that uses CocoaPods. I get the following errors:
30 Answers
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How to print a debug log?
...', print_r($foo, TRUE)) will nicely dump the value of $foo into the Apache error log.
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'
... installed the mysql-server, not the mysql-client or something else.
That error means the file /var/run/mysqld/mysqld.sock doesn't exists, if you didn't install mysql-server, then the file would not exist. So in that case, install it with
sudo apt-get install mysql-server
But if the mysql-serve...
Angular ng-repeat Error “Duplicates in a repeater are not allowed.”
...rective. This means if you are trying to do the following, you will get an error.
// This code throws the error "Duplicates in a repeater are not allowed.
// Repeater: row in [1,1,1] key: number:1"
<div ng-repeat="row in [1,1,1]">
However, changing the above code slightly to define an index...
Should I use .done() and .fail() for new jQuery AJAX code instead of success and error
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As stated by user2246674, using success and error as parameter of the ajax function is valid.
To be consistent with precedent answer, reading the doc :
Deprecation Notice:
The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery ...
How to programmatically send a 404 response with Express/Node?
I want to simulate a 404 error on my Express/Node server. How can I do that?
6 Answers
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How to solve “Fatal error: Class 'MySQLi' not found”?
I am doing a tutorial and am getting this error:
22 Answers
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npm install errors with Error: ENOENT, chmod
...ed. Every time I try to install, either from npm or the folder, I get this error.
29 Answers
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