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What are these ^M's that keep showing up in my files in emacs?
So I think it may have to do with textmate, but we work in a small team and are having some issues with full-file conflicts of nearly identical files in git because each line of one branch has a ^M appended to it.
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How can I build a small operating system on an old desktop computer? [closed]
...things first. Read, read, read, read, read. You need to have a firm understanding of how the OS works before you can hope to implement your own.
Grab one of Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Op...
How do I create a right click context menu in Java Swing?
...g a right-click context menu by instantiating a new JMenu on right click and setting its location to that of the mouse's position... Is there a better way?
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Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
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We will look at how the contents of this array are constructed and can be manipulated to affect where the Perl interpreter will find the module files.
Default @INC
Perl interpreter is compiled with a specific @INC default value. To find out this value, run env -i perl -V command (env ...
Locking a file in Python
... for the program to terminate in such a way that the lock is left in place and you have to manually delete the lock before the file becomes accessible again. However, that aside, this is still a good solution.
– leetNightshade
Nov 8 '12 at 21:27
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What is the difference between the states selected, checked and activated in Android?
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The difference between Checked and Activated is actually quite interesting. Even the Google documentation is apologetic (emphasis below added):
... For example, in a list view with single or multiple selection
enabled, the views in the current selec...
How can I profile Python code line-by-line?
I've been using cProfile to profile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).
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How to process SIGTERM signal gracefully?
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This is the best answer (no threads required), and should be the preferred first-try approach.
– jose.angel.jimenez
Oct 12 '15 at 16:56
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psql: could not connect to server: No such file or directory (Mac OS X)
...master has exited.).
SOLUTION: This fixed the issue--I deleted this file, and then everything worked!
/usr/local/var/postgres/postmaster.pid
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and here is how I figured out why this needed to be deleted.
I used the following command to see if there were any PG processes running. for me ther...