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How to delete migration files in Rails 3
...le or columns.
Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html
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Git branch diverged after rebase
...working with in a team when your push may overwrite any recent work pushed by others. Am I right?
– Hari Krishna Ganji
Nov 23 '14 at 13:56
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Is it possible to hide extension resources in the Chrome web inspector network tab?
...r a page in the Chrome web inspector, I also see the HTML/JS/CSS requested by certain extensions.
5 Answers
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In bash, how does one clear the current input?
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Ctrl-A followed by a Ctrl-K also works. The 'killed' text is stored and you can paste it by using Ctrl-Y. These keystrokes in fact come from the read line library: cnswww.cns.cwru.edu/php/chet/readline/rluserman.html .. so you can find them ...
MySql server startup error 'The server quit without updating PID file '
...f /usr/local/var/mysql/
ls -laF /usr/local/var/mysql/
if it is owner by root you should change it mysql or your_user
sudo chown -R mysql /usr/local/var/mysql/
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Script to get the HTTP status code of a list of urls?
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I had this issue and I was able to fix it by switching the line ending from the Windows type to the Linux type.
– Tristan
Jul 13 '17 at 1:40
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Does “untyped” also mean “dynamically typed” in the academic CS world?
...e syntactic method for proving the absence
of certain program behaviors by classifying phrases according to the
kinds of values they compute.
He also remarks:
The word “static” is sometimes added explicitly--we speak of a
“statically typed programming language,” for example--to ...
What's a 3D doing in this HTML?
I'm trying to duplicate a mailer I got into my gmail by taking a look at its code. I see a lot of this in multiple source viewers:
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DLL and LIB files - what and why?
...ding the library code into your program when it is compiled, it can be run by mapping it into your program as it is loaded into memory. Multiple programs running at the same time that use the same functions can all share one copy, saving memory. In fact, you can load dynamic libraries only as needed...
How to change size of split screen emacs windows?
...plit horizontally - on top I'm editing Perl code, the bottom is the shell. By default emacs makes the two windows equal in size, but I'd like the shell buffer smaller (maybe half the size?). I was wondering how I could do that.
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