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Find and Replace Inside a Text File from a Bash Command
...to do a find and replace for a given input string, say abc , and replace with another string, say XYZ in file /tmp/file.txt ?
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PG::ConnectionBad - could not connect to server: Connection refused
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It could be as simple as a stale PID file. It could be failing silently because your computer didn't complete the shutdown process completely which means postgres didn't delete the PID (process id) file.
The PID file is use...
CardView layout_width=“match_parent” does not match parent RecyclerView width
I have a fragment with contains a RecyclerView with layout_width="match_parent":
10 Answers
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How do the post increment (i++) and pre increment (++i) operators work in Java?
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The main point is that ++a increments the value and immediately returns it.
a++ also increments the value (in the background) but returns unchanged value of the variable - what looks like it is executed later.
share
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MySQL case insensitive select
Can anyone tell me if a MySQL SELECT query is case sensitive or case insensitive by default? And if not, what query would I have to send so that I can do something like:
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Changing navigation bar color in Swift
...ntroller?.navigationBar.barTintColor = UIColor.green
Replace greenColor with whatever UIColor you want, you can use an RGB too if you prefer.
Navigation Bar Text:
navigationController?.navigationBar.titleTextAttributes = [.foregroundColor: UIColor.orange]
Replace orangeColor with whatever col...
How to format a java.sql Timestamp for displaying?
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edited Mar 22 '18 at 12:12
Rodrigue
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Maven: add a dependency to a jar by relative path
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I want the jar to be in a 3rdparty lib in source control, and link to it by relative path from the pom.xml file.
If you really want this (understand, if you can't use a corporate repository), then my advice would be to use a "file repository" local to the project and to not use a system scope...
Purpose of Trigraph sequences in C++?
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This question (about the closely related digraphs) has the answer.
It boils down to the fact that the ISO 646 character set doesn't have all the characters of the C syntax, so there are some systems with keyboards and displays that can't deal with the characters (though I imagine that these ...
PHP multidimensional array search by value
...rn $key;
}
}
return null;
}
This will work. You should call it like this:
$id = searchForId('100', $userdb);
It is important to know that if you are using === operator compared types have to be exactly same, in this example you have to search string or just use == instead ===.
Bas...