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eval command in Bash and its typical uses
... splits value of the variable or the output from the command into separate words) and then treats each word as a wildcard pattern. For example:
$ ls
file1 file2 otherfile
$ set -- 'f* *'
$ echo "$1"
f* *
$ echo $1
file1 file2 file1 file2 otherfile
$ n=1
$ eval echo \${$n}
file1 file2 file1 file2 ot...
What is the difference between a port and a socket?
...e being strong functional parallels. Nevertheless, in network parlance the word "socket" carries so much baggage that a careful re-examination is necessary.
In the broadest possible sense, a port is a point of ingress or egress. Although not used in a networking context, the French word porte liter...
How to style the parent element when hovering a child element?
...olution:
$(".letter").hover(function() {
$(this).closest("#word").toggleClass("hovered")
});
.hovered {
background-color: lightblue;
}
.letter {
margin: 20px;
background: lightgray;
}
.letter:hover {
background: grey;
}
<script src="https://cdnjs.cloudf...
Bash empty array expansion with `set -u`
...
${parameter+word} only expands word if parameter is not unset.
– ikegami
Nov 22 '16 at 17:51
2
...
What does this thread join code mean?
...
In other words, if we want to "serialize" execution of t1 and t2 threads, we need to place t1.join() right after t1.start() since main thread started t1 (and t2 afterwards) and of course remove it from try/catch. Obviously, doing so, ...
SQLAlchemy: What's the difference between flush() and commit()?
...uggest exactly this: https://stackoverflow.com/a/15305650/764365
In other words, commits should reduce memory usage, although presumably there is a trade-off between memory and performance here. In other words, you probably don't want to commit every single database change, one at a time (for perfo...
Propagate all arguments in a bash shell script
...
I suggest anyone who wants to understand the subject of Word Splitting better, to read more about it here.
– Rany Albeg Wein
Jan 21 '16 at 4:07
4
...
Disable browser cache for entire ASP.NET website
...ng programmatically will always override any declared Attribute. In other words, using the OP's code will override any declared [OutputCache] attribute.
– Dave Black
Sep 13 '11 at 18:05
...
I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome
...
My advice is to avoid any image names; class names or ID's with the words:
Advert
Advertise
in their name!
I ran some tests and Ad blockers regularly block any direct content with these names either within the CSS file, Div or Span Layers.
So an image name loaded via CSS such as advert...
Check if two unordered lists are equal [duplicate]
...
@J.F.Sebastian Sorry for ignoring that words, but I think a good answer should be explicit and directly tell the reader what is the best way to solve problem, not just provide a controversial way with a dispensable explanation under it. I will withdraw the downvot...