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Grepping a huge file (80GB) any way to speed it up?
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Here are a few options:
1) Prefix your grep command with LC_ALL=C to use the C locale instead of UTF-8.
2) Use fgrep because you're searching for a fixed string, not a regular expression.
3) Remove the -i option, if you don't need it.
So your command becomes:
LC_ALL=C ...
Print string and variable contents on the same line in R
Is there a way to print text and variable contents on the same line? For example,
8 Answers
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What is the result of % in Python?
...odulo operator always yields a result with the same sign as its second operand (or zero); the absolute value of the result is strictly smaller than the absolute value of the second operand [2].
Taken from http://docs.python.org/reference/expressions.html
Example 1:
6%2 evaluates to 0 because the...
How to kill a process on a port on ubuntu
I am trying to kill a process in the command line for a specific port in ubuntu.
27 Answers
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`elif` in list comprehension conditionals
...-based language, he firmly resisted for a long time (tertiary expressions, and particularly their abuse, are sources of much obscurity in code). When he finally succumbed, he announced he had deliberately chosen a syntax that discouraged overuse. As usual, he did an elegant design job nevertheless.
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Why shouldn't all functions be async by default?
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First off, thank you for your kind words. It is indeed an awesome feature and I am glad to have been a small part of it.
If all my code is slowly turning async, why not just make it all async by default?
Well, you're exaggerating; all your code isn't turning async. When you add two "plain" in...
Android ClassNotFoundException: Didn't find class on path
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I had the same issue for my project. It happened due to the conflict in android support library version between my project and the library project that I added in my project. Put the same version android support library in your project and library projects you included and clean build... Everythi...
Having a private branch of a public repo on GitHub?
...ode)
You can bring in changes to your public repo using 'git fetch public' and then merge them locally and push to your private repo (origin remote).
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Find the division remainder of a number
... % performs a true modulus, which returns values on the range [0, divisor) and pairs well with floored division (towards negative infinity). C languages use the % operator for remainder operations which returns values on the range (-divisor, divisor) and pairs well with standard division (towards ze...
Multiplication on command line terminal
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For more advanced and precise math consider using bc(1).
echo "3 * 2.19" | bc -l
6.57
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