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The tilde operator in Python
...pes are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit)...
Extract file basename without path and extension in bash [duplicate]
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You don't have to call the external basename command. Instead, you could use the following commands:
$ s=/the/path/foo.txt
$ echo "${s##*/}"
foo.txt
$ s=${s##*/}
$ echo "${s%.txt}"
foo
$ echo "${s%.*}"
foo
Note that this solution should work in all recent (post 2004)...
How to check all checkboxes using jQuery?
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Intersection and union of ArrayLists in Java
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Alternatives to gprof [closed]
...ofiler with a very nice visualizer called KCacheGrind. As Mike Dunlavey recommends, Valgrind counts the fraction of instructions for which a procedure is live on the stack, although I'm sorry to say it appears to become confused in the presence of mutual recursion. But the visualizer is very nice ...
How do I push a new local branch to a remote Git repository and track it too?
...eckout a new branch:
git checkout -b <branch>
Edit files, add and commit. Then push with the -u (short for --set-upstream) option:
git push -u origin <branch>
Git will set up the tracking information during the push.
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Undo changes in entity framework entities
...ty. It will not reveret changes in navigation properties / relations.
The common way to "revert changes" is disposing context and reload entities. If you want to avoid reloading you must create clones of entities and modify those clones in new object context. If user cancel changes you will still h...
How do I copy a hash in Ruby?
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Adding a more explicit comment here for those who aren't reading other answers that this is does a shallow copy.
– grumpasaurus
Nov 17 '12 at 16:00
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How to replace a hash key with another key
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How do I find out what keystore my JVM is using?
...check where your JAVA_HOME is configured, possibly one of these places,
Computer--->Advanced --> Environment variables---> JAVA_HOME
Your server startup batch files.
In your import command -keystore cacerts (give full path to the above JRE here instead of just saying cacerts).
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