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Get specific line from text file using just shell script
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@KanagaveluSugumar read sed's info page. 5!d means delete all lines except 5. shell var is possible, you need double quotes.
– Kent
Apr 24 '14 at 10:15
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What does 'synchronized' mean?
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The synchronized keyword is all about different threads reading and writing to the same variables, objects and resources. This is not a trivial topic in Java, but here is a quote from Sun:
synchronized methods enable a simple
strategy for preventing thread
interfere...
Read logcat programmatically within application
I want to read and react to logcat logs within my application.
6 Answers
6
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Is the != check thread safe?
I know that compound operations such as i++ are not thread safe as they involve multiple operations.
8 Answers
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Why can't Python parse this JSON data?
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Justin Peel's answer is really helpful, but if you are using Python 3 reading JSON should be done like this:
with open('data.json', encoding='utf-8') as data_file:
data = json.loads(data_file.read())
Note: use json.loads instead of json.load. In Python 3, json.loads takes a string parame...
What is PostgreSQL explain telling me exactly?
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(When you're using PgAdmin, you can point your mouse at a component to read the cost details.)
The cost is represented as a tuple, e.g. the cost of the LIMIT is cost=0.00..3.39 and the cost of sequentially scanning post is cost=0.00..15629.12. The first number in the tuple is the startup cost a...
How to parse/read a YAML file into a Python object? [duplicate]
How to parse/read a YAML file into a Python object?
3 Answers
3
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How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]
...y details
A DLL uses the PE executable format, and it's not too tricky to read that information out of the file.
See this MSDN article on the PE File Format for an overview. You need to read the MS-DOS header, then read the IMAGE_NT_HEADERS structure. This contains the IMAGE_FILE_HEADER structure ...
How can I use PHP to dynamically publish an ical file to be read by Google Calendar?
... Google search on PHP ical just brings up phpicalendar and how to parse or read IN ical files. I just want to write a PHP file that pulls events from my database and writes them out in ical format.
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SQL Server NOLOCK and joins
... a performance-critical query I'd like to run and I don't care about dirty reads.
3 Answers
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