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Use find command but exclude files in two directories
I want to find files that end with _peaks.bed , but exclude files in the tmp and scripts folders.
6 Answers
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How to get overall CPU usage (e.g. 57%) on Linux [closed]
I am wondering how you can get the system CPU usage and present it in percent using bash, for example.
5 Answers
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...rent memory addresses
one of those moved instructions was an important conditional branch
that branch was being incorrectly predicted due to aliasing in the branch prediction table
moving the branch eliminated the alias and allowed the branch to be predicted correctly
Your Core2 doesn't keep a sep...
In vim, how do I go back to where I was before a search?
Programming in vim I often go search for something, yank it, then go back to where I was, insert it, modify it.
7 Answers
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Guid is all 0's (zeros)?
I'm testing out some WCF services that send objects with Guids back and forth. In my web app test code, I'm doing the following:
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What is the C# equivalent of NaN or IsNumeric?
What is the most efficient way of testing an input string whether it contains a numeric value (or conversely Not A Number)? I guess I can use Double.Parse or a regex (see below) but I was wondering if there is some built in way to do this, such as javascript's NaN() or IsNumeric() (was that VB...
What is the purpose of “&&” in a shell command?
As far as I know, using & after the command is for running it in the background.
9 Answers
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Grouping functions (tapply, by, aggregate) and the *apply family
...ing useRs may have difficulty deciding which one is appropriate for their situation or even remembering them all. They may have a general sense that "I should be using an *apply function here", but it can be tough to keep them all straight at first.
Despite the fact (noted in other answers) that mu...
Execution of Python code with -m option or not
...ommand-line flag, Python will import a module or package for you, then run it as a script. When you don't use the -m flag, the file you named is run as just a script.
The distinction is important when you try to run a package. There is a big difference between:
python foo/bar/baz.py
and
python -m f...
Why is `[` better than `subset`?
...en I need to filter a data.frame, i.e., extract rows that meet certain conditions, I prefer to use the subset function:
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