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How to loop over directories in Linux?
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By the way: Note, that all answers will find hidden folders, too (that is, folders starting with a dot)! If you don't want this, add ` -regex '\./[^\.].*'` before the printf or exec options.
– Boldewyn
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How do I use a file grep comparison inside a bash if/else statement?
...on-zero meaning false—the same as how other return codes are interpreted by the shell, and the opposite of a language like C.
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Validate uniqueness of multiple columns
... the following example:
database table records are supposed to be unique by n fields;
multiple (two or more) concurrent requests, handled by separate processes each (application servers, background worker servers or whatever you are using), access database to insert the same record in table;
each ...
How to deep watch an array in angularjs?
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The performance issues would be minimized by using $watchCollection, as mentioned by @Blazemonger comment (stackoverflow.com/questions/14712089#comment32440226_14713978).
– Sean the Bean
Jun 12 '15 at 19:23
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Why not infer template parameter from constructor?
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@KyleStrand Yes, by saying 'class template arguments cannot be deduced from their constructors because [example that does not use any constructor]', this answer is completely irrelevant. I genuinely can't believe it was accepted, reached +29,...
How to create a generic array in Java?
...t the array and the values in the array are of the correct type.
It works by using class literals as runtime type tokens, as discussed in the Java Tutorials. Class literals are treated by the compiler as instances of java.lang.Class. To use one, simply follow the name of a class with .class. So, St...
How to open a web server port on EC2 instance
... @Noitidart Save is what he means. But I am sure you figured that out by now :)
– mattdevio
Oct 26 '18 at 7:31
Th...
Allow user to set up an SSH tunnel, but nothing else
... this key is used
for authentication. The command supplied by the user (if any) is
ignored.
Attempts to use scp secure file copying will also fail with an echo of "do-not-send-commands" I've found sftp also fails with this configuration.
I think the restricted she...
Set environment variables from file of key/value pairs
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Although reading the file line-by-line and passing each line to export is not ideal, the problem can also be fixed by simply using input redirection on the loop: while read line; do ... ; done < ./conf/$1.
– chepner
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How to create a protocol with methods that are optional?
...ier for a method after compilation. You can provide the correct identifier by using the @selector() directive and specifying the name of the method.
If the data source in this example implements the method, the title is used; otherwise, the title remains nil.
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