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Delete specific line number(s) from a text file using sed?
...placed with one which deletes the lines right away. For example;
grep -nh error logfile | cut -d: -f1 | deletelines logfile
(where deletelines is the utility you are imagining you need) is the same as
grep -v error logfile
Having said that, if you are in a situation where you genuinely need to...
Facebook Open Graph not clearing cache
...
Hi, I'm trying this method but I'm getting some errors, $this->output(' <script type="text/javascript"> $(document).ready(function(){ $.post( "graph.facebook.com", { id: "'.$this->content['canonical'].'", scrape: tr...
Rollback to an old Git commit in a public repo
...te them. So when you go to build (depending on your platform), you may get errors still. Delete the new files and you're good to go.
– TheWestIsThe...
Oct 9 '13 at 17:31
6
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How do I copy SQL Azure database to my local development server?
...
I get an error saying target cannot be sql azure v12?
– Zapnologica
Mar 24 '16 at 7:32
2
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What is output buffering?
...example:
<?php
ob_start( );
echo "Hello World";
if ( $some_error )
{
header( "Location: error.php" );
exit( 0 );
}
?>
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Difference between float and double in php?
...ction function some( float $num){}, when i use some(17.23) it throws fatal error some() must be an instance of float, double given,
– Naveen DA
Sep 2 '17 at 9:02
1
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Efficient way to return a std::vector in c++
...s "return by value" might be, it's the kind of code that can lead one into error. Consider the following program:
#include <string>
#include <vector>
#include <iostream>
using namespace std;
static std::vector<std::string> strings;
std::vector<std...
Creating runnable JAR with Gradle
...to run jar file with java -jar build/libs/core-all-1.0.jar I get following error: Error: Could not find or load main class scanners.exchange.Main Caused by: java.lang.ClassNotFoundException: scanners.exchange.Main Do you know how I can solve this?
– Luka Lopusina
...
How to make a class conform to a protocol in Swift?
...onform to protocol 'UITableViewDataSource'
Is expected. You will get the error until your class implements all required methods of the protocol.
So get coding :)
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Is it better to return null or empty collection?
... or "don't know". We could throw an exception, but it's not necessarily an error condition, and it doesn't necessarily drive us out of the normal program flow.
I've often been frustrated by systems that cannot distinguish between zero and no answer. I've had a number of times where a system has ask...