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What's the best way to send a signal to all members of a process group?
...se if the tree is the result of forking from a server start or a shell command line.) You can discover process groups using GNU ps as follows:
ps x -o "%p %r %y %x %c "
If it is a process group you want to kill, just use the kill(1) command but instead of giving it a process number, give it th...
Why are my PowerShell scripts not running?
I wrote a simple batch file as a PowerShell script, and I am getting errors when they run.
9 Answers
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How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
I want to be able to connect to a PostgreSQL database and find all of the functions for a particular schema.
9 Answers
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How do I test a private function or a class that has private methods, fields or inner classes?
..., z);
foo.privateField = value;
This way your code remains type-safe and readable. No design compromises, no overexposing methods and fields for the sake of tests.
If you have somewhat of a legacy Java application, and you're not allowed to change the visibility of your methods, the best wa...
Why doesn't git recognize that my file has been changed, therefore git add not working
... trying to push my files to github using bash. They are already on there, and I am uploading a newer version with new lines and code, etc. But when I try git add and then git status it says:
...
How do I get out of a screen without typing 'exit'?
I screen -r 'd into a django server that's running and I can't simply Ctrl-C and exit out of it.
5 Answers
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
... system, /dev/stdout is world-readable symlink to /dev/fd/1 which is owned and read+writeable by my user.
– Patrick
Jul 29 '14 at 19:06
1
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How does the String class override the + operator?
...x = "+x;
The compiler converts "x = "+x; into a StringBuilder internally and uses .append(int) to "add" the integer to the string.
5.1.11. String Conversion
Any type may be converted to type String by string conversion.
A value x of primitive type T is first converted to a reference val...
Running a cron every 30 seconds
...e offset by 30 seconds:
# Need these to run on 30-sec boundaries, keep commands in sync.
* * * * * /path/to/executable param1 param2
* * * * * ( sleep 30 ; /path/to/executable param1 param2 )
You'll see I've added comments and formatted to ensure it's easy to keep them synchronised.
Bo...
How do I make the first letter of a string uppercase in JavaScript?
...ility (hard to find out where the function is being added to the prototype and could cause conflicts if other code uses the same name / a browser adds a native function with that same name in future).
...and then, there is so much more to this question when you consider internationalisation, as thi...