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Relative paths based on file location instead of current working directory [duplicate]
... it at the beginning of the script.
#!/bin/bash
parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
cd "$parent_path"
cat ../some.text
This will make your shell script work independent of where you invoke it from. Each time you run it, it will be as if you were running ./cat.sh inside ...
How to properly ignore exceptions
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try:
doSomething()
except:
pass
or
try:
doSomething()
except Exception:
pass
The difference is that the first one will also catch KeyboardInterrupt, SystemExit and stuff like that, which are derived directly from ex...
JPA: what is the proper pattern for iterating over large result sets?
Let's say I have a table with millions of rows. Using JPA, what's the proper way to iterate over a query against that table, such that I don't have all an in-memory List with millions of objects?
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How was the first compiler written?
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Assembly instructions are (generally) a direct mapping to opcodes, which are (multi-)byte values of machine code that can be directly interpreted by the processor. It is quite possible to write a program in opcodes directly by lo...
C# Sortable collection which allows duplicate keys
I am writing a program to set a sequence in which various objects will appear in report.
The sequence is the Y position (cell) on Excel spreadsheet.
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#if DEBUG vs. Conditional(“DEBUG”)
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[Conditional("DEBUG")]: This code will reach the IL, however calls to the method will be omitted unless DEBUG is set when the caller is compiled.
Personally I use both depending on the situation:
Conditional("DEBUG") Example: I use this so that I don't have to go back and edit my code later duri...
Cookies on localhost with explicit domain
I must be missing some basic thing about cookies. On localhost, when I set a cookie on server side and specify the domain explicitly as localhost (or .localhost). the cookie does not seem to be accepted by some browsers.
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How do I activate a virtualenv inside PyCharm's terminal?
I've set up PyCharm, created my virtualenv (either through the virtual env command, or directly in PyCharm) and activated that environment as my Interpreter. Everything is working just fine.
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What's the best way to distribute Java applications? [closed]
Java is one of my programming languages of choice. I always run into the problem though of distributing my application to end-users.
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Can every recursion be converted into iteration?
... iterative one? Yes, absolutely, and the Church-Turing thesis proves it if memory serves. In lay terms, it states that what is computable by recursive functions is computable by an iterative model (such as the Turing machine) and vice versa. The thesis does not tell you precisely how to do the conve...