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Getting the parent of a directory in Bash
...t substitution feature to cut the last slash and whatever follows.
Answer from simple to more complex cases of the original question.
If path is guaranteed to end without any slash (in and out)
P=/home/smith/Desktop/Test ; echo "${P%/*}"
/home/smith/Desktop
If path is guaranteed to end with exa...
What is the preferred/idiomatic way to insert into a map?
...a value. Obviously, this can be inefficient if the mapped_type can benefit from being directly initialized instead of default constructed and assigned. This method also makes it impossible to determine if an insertion has indeed taken place or if you have only overwritten the value for an previously...
Split string in Lua?
...o find the location to split the string at.
Example using string.gmatch() from Lua 5.1 Reference Manual:
t = {}
s = "from=world, to=Lua"
for k, v in string.gmatch(s, "(%w+)=(%w+)") do
t[k] = v
end
share
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
...fering more than a single item at a time. If you only need the first value from the returned sequence, for example, why would you want to copy everything into a new list?
As another example, you can easily create an infinite stream using iterator blocks. For example, here's a sequence of random num...
Authorize a non-admin developer in Xcode / Mac OS
...ading to Snow Leopard I am asked to do the following when a program is run from within Xcode:
10 Answers
...
Calling a function of a module by using its name (a string)
... the method you need to call is defined in the same module you are calling from.
– Joelmob
Oct 9 '14 at 21:36
@Joelmob...
GIT commit as different user without email / or only email
...ry useful.
I think it would make even more sense to extract the user name from the email address and then use that as the username. But if you have to:
git commit --author="john@doe.com <>" -m "Impersonation is evil."
I ran in to this when trying to convert a repository from mercurial to...
Mvn install or Mvn package
...
from http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html
package: take the compiled code and package it in its distributable
format, such as a JAR.
install: install the package into the local ...
Read entire file in Scala?
...
val lines = scala.io.Source.fromFile("file.txt").mkString
By the way, "scala." isn't really necessary, as it's always in scope anyway, and you can, of course, import io's contents, fully or partially, and avoid having to prepend "io." too.
The above ...
How to get Git to clone into current directory
...ply put a dot next to it
git clone git@github.com:user/my-project.git .
From git help clone:
Cloning into an existing directory is only allowed if the directory is empty.
So make sure the directory is empty (check with ls -a), otherwise the command will fail.
...