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How to get back to most recent version in Git?
...branch with the previous modifications and commit them:
$ git checkout -b my_new_branch
$ git add my_file.ext
$ git commit -m "My cool msg"
After this you can go back to your master branch (most recent version):
$ git checkout master
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How to 'grep' a continuous stream?
...ing BSD grep (FreeBSD, Mac OS X etc.)
tail -f file | grep --line-buffered my_pattern
You don't need to do this for GNU grep (used on pretty much any Linux) as it will flush by default (YMMV for other Unix-likes such as SmartOS, AIX or QNX).
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How to run a single RSpec test?
... which will only run it blocks matching the name you supply.
spec path/to/my_spec.rb -e "should be the correct answer"
2019 Update: Rspec2 switched from the 'spec' command to the 'rspec' command.
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DbEntityValidationException - How can I easily tell what caused the error?
... have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
9...
Does Swift have documentation generation support?
...sage:
///
/// // Create an integer, and do nothing with it
/// let myInt = 42
/// doNothing(myInt)
///
/// // Also notice that code blocks scroll horizontally instead of wrapping.
///
/// Links & Images
/// --------------
///
/// Include [links](https://en.wikipedia.org/wiki/Hype...
Store pictures as files or in the database for a web app?
My question is fairly generic and I know there might not be an 100% answer to it. I'm building an ASP .NET web solution that will include a lot of pictures and hopefully a fair amount of traffic. I do really want to achieve performance.
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Set folder browser dialog start location
...lectedPath property before calling ShowDialog.
fdbLocation.SelectedPath = myFolder;
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What does it mean when git says a file “needs update”?
...-hard HEAD] worked for me. I had committed from a Windows share drive, but my Ubuntu directory wouldn't reflect the commit I'd just made, even though it was the same folder (Z: mapped to /var/www/html/). After running this, [git status] and [git pull] both now show it's up-to-date.
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Python Requests and persistent sessions
...ime
import os
from urllib.parse import urlparse
import requests
class MyLoginSession:
"""
a class which handles and saves login sessions. It also keeps track of proxy settings.
It does also maintine a cache-file for restoring session data from earlier
script executions.
"""
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Local dependency in package.json
...ut this way I'll get "ERR not found" when trying to import the module into my project.
– C4d
Jun 11 '19 at 11:16
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