A good while ago, I read an article by the creator of viemu , clearing up a lot of the misconceptions about vi, as well as explaining why it's a good idea (and why it's been very popular for the last 30 years+). The same guy also has a great set of graphical cheat sheets that teach the basics a f...

...e "grep" with impunity on my pdf files. Since I can grep better than I can read, it's a win! (:-) Upvote. – David Elson Aug 8 '15 at 22:54 1 ...

...rchased one has been signed by a Certificate Authority that your browser already knows about. In other words, your browser can easily validate the authenticity of a purchased certificate. Unfortunately this has led to a common misconception that self-signed certificates are inherently less secure t...

...he java.time package which is finally a worthwhile Java standard solution! Read this article, Java SE 8 Date and Time, for a good amount of information on java.time outside of hours and minutes. In particular, look at the LocalDateTime class. Hours and minutes: LocalDateTime.now().getHour(); Loc...

...-set the fileformat as unix without actually changing the contents. So vim reads it like a Unix file, sees the CR characters as extra and displays them as ^M. – sundar - Reinstate Monica Apr 20 '18 at 22:41 ...

...in(void) { void **mem = malloc(sizeof(char)*3); void *ptr; /* read past end */ ptr = (char*) mem[5]; /* write past end */ memcpy(mem[5], "whatever", sizeof("whatever")); /* free invalid pointer */ free((void*) mem[3]); return 0; } The code above can be co...

... If you're just wanting (semi) contiguous regions, there's already an easy implementation in Python: SciPy's ndimage.morphology module. This is a fairly common image morphology operation. Basically, you have 5 steps: def find_paws(data, smooth_radius=5, threshold=0.0001): dat...

I have read the documentation about automatic /lightweight migration for Core Data models - but I am having problems implementing it. ...

...see the bugs that other people have reported to Apple. However, I recently read that Apple uses multiple bug reports for the same issue as an indicator of the severity or priority of a bug or request (see this blog post). So while I generally agree with you that it's better to search first and try t...

...This raw string of bytes can be written to a file. However, note that when reading it back, you must know what encoding it is in and decode it using that same encoding. When writing to files, you can get rid of this manual encode/decode process by using the codecs module. So, to open a file that en...