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Is there a way to make mv create the directory to be moved to if it doesn't exist?
...n bash):
mkdir --parents ./some/path/; mv yourfile.txt $_
Breaking that down:
mkdir --parents ./some/path
creates the directory (including all intermediate directories), after which:
mv yourfile.txt $_
moves the file to that directory ($_ expands to the last argument passed to the previous ...
Singleton with Arguments in Java
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Don't get why this was down-voted.. It's a valid answer tbh. :/
– Zack
Jun 26 '09 at 20:34
13
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How dangerous is it to access an array out of bounds?
...ram can consume excessive resources (CPU, memory, disk), possibly bringing down the entire system. A lot of malware (viruses, etc.) exploits buffer overruns to gain unauthorized access to the system.
(One historical example: I've heard that on some old systems with core memory, repeatedly accessing...
Understanding implicit in Scala
...s points out, beautifully obfuscated code. It can be a real pain to track down where an implicit is coming from and they can actually make the code harder to read and maintain if you aren't careful.
– melston
Mar 19 '19 at 19:27
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Why is string concatenation faster than array join?
... case the VM has to do nearly no work. The only problem is that this slows down other operations on the resulting string a little bit. Also this of course reduces memory overhead.
On the other hand ['abc', 'def'].join('') would usually just allocate memory to lay out the new string flat in memory....
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...even more so.
Answer
It depends.
Long version
I think I'm writing this down for myself. I should have a blog or something...
Whenever people talk of references (or pointers, for that matter), they usually end up in a logomachy (just look at this thread!).
PHP being a venerable language, I thoug...
Generating a unique machine id
...ual, have type Ethernet and are hard to identify as virtual. Others are Up/Down depending on network conditions (wifi)
– Marek
Sep 19 '12 at 11:06
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Should C# methods that *can* be static be static? [closed]
...ethods, etc. Making methods static is a way to keep the degree of coupling down, since you can be sure a static method does not reference any members.
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SQL Server: Database stuck in “Restoring” state
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Worked perfectly - without needing to tear it down and up again. 3 Dbs of 80+ Gb each takes a while ! Thanks!
– Christer
Jan 24 '17 at 12:37
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Why does ASP.NET webforms need the Runat=“Server” attribute?
...o the HTML element on
the server before the Web page is created and sent down to the client.
The HTML element must contain an id attribute. This attribute serves
as an identity for the element and enables you to program to elements
by their specific IDs. In addition to this attribute, the HT...