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Create a tar.xz in one command
...ectory/ | xz -z - > directory.tar.xz
Explanation
tar cf - directory reads directory/ and starts putting it to TAR format. The output of this operation is generated on the standard output.
| pipes standard output to the input of another program...
... which happens to be xz -z -. XZ is configu...
Print new output on same line [duplicate]
...ks for the quick response and update. That makes so much more sense now. I read the help function a dozen times and wasn't obviously paying attention. :)
– onxx
Aug 20 '12 at 4:39
...
How to install PostgreSQL's pg gem on Ubuntu?
...ou want to continue? [Y/n/?] Y Writing extended state information... Done (Reading database ... 166183 files and directories currently installed.) Removing bison ... Removing libnss3-dev ... Removing libnspr4-dev ... Removing libqt4-core ... Removing libqt4-test ... Removing libsqlite3-dev ... Proce...
Why would I use Scala/Lift over Java/Spring? [closed]
... madness. This is a good thing on larger projects, where the time to just read and understand can be overwhelming.
Object-Relational Mapper Choices
Lift's builtin ORM is "Mapper". There's an upcoming alternative called "Record", but I think it's still considered pre-alpha. The LiftWeb Book has s...
What is the purpose of willSet and didSet in Swift?
...In Swift an iVar or instance variable is named stored property
Example 1 (read only property) - with warning:
var test : Int {
get {
return test
}
}
This will result in a warning because this results in a recursive function call (the getter calls itself).The warning in this case ...
How to delete a property from Google Analytics
...he Google design. I added that to protect personal information. ;)
Stop reading here…
What follows was my original answer, which has been rendered obsolete by Google’s design update on 2014-08-01. For potential reference purposes, I’ve decided to not yet remove that outdated info…
Goo...
How do I force Postgres to use a particular index?
...ate drives
As the documentation admits:
Storage that has a low random read cost relative to sequential, e.g. solid-state drives, might be better modeled with a lower value for random_page_cost.
According to the last point of this slide from a speak at PostgresConf 2018, random_page_cost shoul...
Choosing a Java Web Framework now? [closed]
...sing "Spring Roo" or "Play" will be very helpful.
About Spring Roo, I've read previous answers like Spring roo Vs (Wicket and Spring) and other things over the Internet but I'm still not convinced (maybe I don't get it), I'm not sure of its maturity, and, more important, I'm really wondering what ...
How to pass the value of a variable to the stdin of a command?
...first line(s) will be the contents of $var but the rest will come from cat reading its standard input. If the command does not do anything too fancy (try to turn on command line editing, or run like vim does) then it will be fine. Otherwise, you need to get really fancy - I think expect or one of ...
Map vs Object in JavaScript
... well. With memory management objects also do seem to free earlier if I am reading the profile correctly which might be one benefit in favor of objects.
In Firefox for this particular benchmark it is a different story:
Object Set Took: 435
Object Update Took: 126
Object Get Took: 50
Object Delete To...