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How do I tar a directory of files and folders without including the directory itself?
...e. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my experiment:
$ mkdir my_directory
$ touch my_directory/file1
$ touch my_directory/file2
$ touch my_directory/.hiddenfile1
$ touch my_directory/.hiddenfile2
$ cd my_director...
Python argparse: Make at least one argument required
...one)
allow one or two actions to be called (at least one required).
try to by Pythonic (I would rather call it "POSIX"-like)
There are also some implicit requirements when living on command line:
explain the usage to the user in a way which is easy to understand
options shall be optional
allow s...
How do I add a linker or compile flag in a CMake file?
... compile a simple "Hello, World!" program it compiles fine. When I test it by adding a simple exception handling in that code it works too (after adding -fexceptions .. I guess it is disabled by default).
...
How do I split a string on a delimiter in Bash?
...}"; do
# process "$i"
done
It will parse one line of items separated by ;, pushing it into an array. Stuff for processing whole of $IN, each time one line of input separated by ;:
while IFS=';' read -ra ADDR; do
for i in "${ADDR[@]}"; do
# process "$i"
done
done <&l...
How should one go about choosing a default TCP/IP port for a new service?
...
If all developers go by that logic it would mean that all new services gather around the few unassigned ports. What would the probability be that a service is running on an assigned port vs an unassigned port. (Sorry if I'm not exposing some tr...
Differences between Line and Branch coverage
...n column header is clicked:
Line Coverage - The percent of lines executed by this test run.
Branch Coverage - The percent of branches executed by this test run.
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When would you use a WeakHashMap or a WeakReference?
...WeakReference and a SoftReference.
Basically a WeakReference will be GC-d by the JVM eagerly, once the referenced object has no hard references to it. A SoftReferenced object on the other hand, will tend to be left about by the garbage collector until it really needs to reclaim the memory.
A cache...
Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
...udo-elements [blog]. You can disable the default appearance and behaviour by setting -webkit-appearance [docs] to none.
Because you're removing the default style, you'll also need to specify the style yourself or the scroll bar will never show up. The following CSS recreates the appearance of the...
Why charset names are not constants?
Charset issues are confusing and complicated by themselves, but on top of that you have to remember exact names of your charsets. Is it "utf8" ? Or "utf-8" ? Or maybe "UTF-8" ? When searching internet for code samples you will see all of the above. Why not just make them named constants and use ...
What is the difference between window, screen, and document in Javascript?
...y name - so you do not have to write down window. - it will be figured out by the runtime.
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