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How to fix apt-get: command not found on AWS EC2? [closed]
I installed Ubuntu 12.04 on my instance and am trying to install packages using apt-get, but I am getting the following error:
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Access the css “:after” selector with jQuery [duplicate]
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You can't manipulate :after, because it's not technically part of the DOM and therefore is inaccessible by any JavaScript. But you can add a new class with a new :after specified.
CSS:
.pageMenu .active.changed:after {
/* this selector is more specific, so it takes precedence over the other :aft...
How to find out “The most popular repositories” on Github? [closed]
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If you want most forks, do it like this:
Most Forks
And most starred:
Most Starred
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fatal: Not a git repository (or any of the parent directories): .git [duplicate]
When I tried to push an existing repository on github.com, and it when I entered the command the website prompted me to put into the terminal, I got this error message fatal:
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Netflow record can't get octets (jnca)
...by Netflow a network administrator can determine things such as the source and destination of the traffic, class of service, and the cause of congestion. Netflow consists of three components: flow caching, Flow Collector, and Data Analyzer. In Netflow, router forwards details of network usage as UDP...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
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To expand upon Christian's answer, the only reliable way to do this would be to combine mkdir and cp:
mkdir -p /foo/bar && cp myfile "$_"
As an aside, when you only need to create a single directory in an existing hierar...
Remove all whitespaces from NSString
...stringByTrimmingCharactersInSet only removes characters from the beginning and the end of the string, not the ones in the middle.
1) If you need to remove only a given character (say the space character) from your string, use:
[yourString stringByReplacingOccurrencesOfString:@" " withString:@""]
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How do I include inline JavaScript in Haml?
...thJax.
You can use the plain filter to keep HAML from parsing the script and throwing an illegal nesting error:
%script{type: "text/x-mathjax-config"}
:plain
MathJax.Hub.Config({
tex2jax: {
inlineMath: [["$","$"],["\\(","\\)"]]
}
});
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YYYY-MM-DD format date in shell script
... can be viewed from the date man pages (for external non-bash specific command):
man date
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SQLAlchemy ORDER BY DESCENDING?
...nstance, I might have done:
.order_by(model.Entry.amount.desc())
This is handy since it avoids an import, and you can use it on other places such as in a relation definition, etc.
For more information, you can refer this
sh...