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How to send a simple string between two programs using pipes?
I tried searching on the net, but there are hardly any resources. A small example would suffice.
7 Answers
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How to export query result to csv in Oracle SQL Developer?
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@topr Use method 1, then select all, copy and paste into a text editor and save as csv. You might even be able to paste directly into Excel, but I'm not sure about that.
– Travis
Jan 3 '14 at 20:08
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How to trim a string in SQL Server before 2017?
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Incidentally, what possible reason could Microsoft have for including an LTRIM and RTRIM function without a TRIM? It's peculiar.
– Ben Hoffstein
Oct 7 '08 at 18:06
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What is a JavaBean exactly?
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A JavaBean is just a standard
All properties private (use getters/setters)
A public no-argument constructor
Implements Serializable.
That's it. It's just a convention. Lots of libraries depend on it though.
With respect to Serializable, from the API d...
Type hinting a collection of a specified type
...ntainers.
In other words, now you can do:
from typing import List
def my_func(l: List[int]):
pass
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Reusable library to get human readable version of file size?
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Addressing the above "too small a task to require a library" issue by a straightforward implementation:
def sizeof_fmt(num, suffix='B'):
for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
if abs(num) < 1024.0:
return "%3.1f...
Perl build, unit testing, code coverage: A complete working example
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It took me a while and it also took me taking small snippets from a number of different sources and melting them together, but I think I have a small working example that sufficiently demonstrates to a Perl newbie the Perl build process including unit testing and code cove...
Python group by
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Python's built-in itertools module actually has a groupby function , but for that the elements to be grouped must first be sorted such that the elements to be grouped are contiguous in the list:
from operator import itemgetter
sortkeyfn = itemgetter(1)
input = [(...
Amazon Interview Question: Design an OO parking lot [closed]
...s.
ParkingSpace has an Entrance.
Entrance has a location or more specifically, distance from Entrance.
ParkingLotSign is a class.
ParkingLot has a ParkingLotSign.
ParkingLot has a finite number of ParkingSpaces.
HandicappedParkingSpace is a subclass of ParkingSpace.
RegularParkingSpace is a s...
How to refer environment variable in POM.xml?
I am using maven as build tool. I have set an environment variable called env . How can I get access to this environment variable's value in the pom.xml file?
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