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How to view file history in Git?
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My favorite is git log -p <filename>, which will give you a history of all the commits of the given file as well as the diffs for each commit.
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ping response “Request timed out.” vs “Destination Host unreachable”
... Thanks @sanderd17, in case anyone else lands here I figured it out: My Linux server was configured with an Ethernet interface with static IP (which I pulled the cable out of once wifi was working) and a Wireless interface that was actually connected. Because of the static IP the Linux server ...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...ncoding. The differences are in how text is sorted and compared.
Note: In MySQL you have to use utf8mb4 rather than utf8. Confusingly, utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version was given the name utf8mb4.
Note: N...
Grouping functions (tapply, by, aggregate) and the *apply family
...user-defined function to apply:
# Append ! to string, otherwise increment
myFun <- function(x){
if(is.character(x)){
return(paste(x,"!",sep=""))
}
else{
return(x + 1)
}
}
#A nested list structure
l <- list(a = list(a1 = "Boo", b1 = 2, c1 = "Eeek"),
b = ...
How to redirect output of an entire shell script within the script itself?
...g everything into a log file
main_function 2>&1 >> /var/log/my_uber_script.log
else
# run via terminal, only output to screen
main_function
fi
Alternatively, you may log everything into logfile each run and still output it to stdout by simply doing:
# log everything, but also o...
Design patterns to avoid [closed]
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Patterns are complex
All design patterns should be used with care. In my opinion you should refactor towards patterns when there is a valid reason to do so instead of implementing a pattern right away. The general problem with using patterns is that they add complexity. Overuse of patterns make...
ActiveMQ or RabbitMQ or ZeroMQ or [closed]
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Edit: My initial answer had a strong focus on AMQP. I decided to rewrite it to offer a wider view on the topic.
These 3 messaging technologies have different approaches on building distributed systems :
RabbitMQ is one of the lea...
Removing packages installed with go get
...go get package to download a package before learning that I needed to set my GOPATH otherwise that package sullies my root Go install (I would much prefer to keep my Go install clean and separate core from custom). How do I remove packages installed previously?
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How to simulate a click by using x,y coordinates in JavaScript?
...ng condition: I have webpage, I am loading Iframe from another domain than my domain. And I want to click in iframe area. Do you have some solution regarding this?
– Parixit
Jun 30 '13 at 10:27
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Why static classes cant implement interfaces? [duplicate]
In my application I want to use a Repository that will do the raw data access ( TestRepository , SqlRepository , FlatFileRepository etc).
Because such a repository would be used throughout the runtime of my application it seemed like a sensible thing to me to make it a static class so I could go
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