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How do I revert all local changes in Git managed project to previous state?
...ich I ran git init .
After several commits, I did git status which told me everything was up to date and there were no local changes.
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Using sed and grep/egrep to search and replace
...ng lines using extended regular expressions
-l: only list matching filenames
-R: search recursively through all given directories
-Z: use \0 as record separator
"\.jpg|\.png|\.gif": match one of the strings ".jpg", ".gif" or ".png"
.: start the search in the current directory
xargs: execute a com...
Taking screenshot on Emulator from Android Studio
... as a result I can't take screenshots using the emulator. Could you give some tips to get it sorted out?
– agiro
Dec 25 '17 at 13:18
1
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What is the (best) way to manage permissions for Docker shared volumes?
I've been playing around with Docker for a while and keep on finding the same issue when dealing with persistent data.
13 A...
Fastest way to count exact number of rows in a very large table?
I have come across articles that state that SELECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
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Round to 5 (or other number) in Python
...
I don't know of a standard function in Python, but this works for me:
Python 2
def myround(x, base=5):
return int(base * round(float(x)/base))
Python3
def myround(x, base=5):
return base * round(x/base)
It is easy to see why the above works. You want to make sure that your n...
Apache: client denied by server configuration
...ecurity feature that often results in this error. You would also see a log message of the form "client denied by server configuration". The feature is requiring an authorized user identity to access a directory. It is turned on by DEFAULT in the httpd.conf that ships with Apache. You can see the ena...
Building executable jar with maven?
I am trying to generate an executable jar for a small home project called "logmanager" using maven, just like this:
4 Answe...
Peak signal detection in realtime timeseries data
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Robust peak detection algorithm (using z-scores)
I came up with an algorithm that works very well for these types of datasets. It is based on the principle of dispersion: if a new datapoint is a given x number of standard deviations away from some moving mean, the algorithm sig...