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Quick unix command to display specific lines in the middle of a file?
...ile is a 20GB log file (with no timestamps even! Why do people use System.out.println() as logging? In production?!)
18 A...
Predicate in Java
...
I'm assuming you're talking about com.google.common.base.Predicate<T> from Guava.
From the API:
Determines a true or false value for a given input. For example, a RegexPredicate might implement Predicate<String>, and return true for any s...
Evaluate empty or null JSTL c tags
...he EL conditional operator ${condition? valueIfTrue : valueIfFalse}:
<c:out value="${empty var1 ? 'var1 is empty or null' : 'var1 is NOT empty or null'}" />
To learn more about those ${} things (the Expression Language, which is a separate subject from JSTL), check here.
See also:
How does E...
How to show only next line after the matched one?
Thanks to this command for every line that has 'blah' in it, I get the output of the line that contains 'blah' and the next line that follows in the logfile. It might be a simple one but I can't find a way to omit the line that has 'blah' and only show next line in the output.
...
Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
...ollowing folder /usr/local/ssl/bin
executed the
.\openssl genrsa -des3 -out <key name>.key 2048
went great..
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Is there a performance difference between i++ and ++i in C?
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I know this question is about C, but I'd be interested to know if browsers can do this optimization for javascript.
– TM.
Aug 12 '09 at 21:58
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What are the differences between concepts and template constraints?
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The following information is out of date. It needs to be updated according to the latest Concepts Lite draft.
Section 3 of the constraints proposal covers this in reasonable depth.
The concepts proposal has been put on the back burners for a short whi...
A Java API to generate Java source files [closed]
... File("./target/classes");
file.mkdirs();
cm.build(file);
I can get this output:
package foo;
public class Bar {
int foo() {
return 5;
}
}
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How to access environment variable values?
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Python default installation on Windows is C:\Python. If you want to find out while running python you can do:
import sys
print(sys.prefix)
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How ViewBag in ASP.NET MVC works
...gt;();
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
object val;
if (objectDictionary.TryGetValue(binder.Name, out val))
{
result = val;
return true;
}
result = null;
return false;
...