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What do pty and tty mean?
...tty" originally meant "teletype" and "pty" means "pseudo-teletype".
In UNIX, /dev/tty* is any device that acts like a "teletype", ie, a terminal. (Called teletype because that's what we had for terminals in those benighted days.)
A pty is a pseudotty, a device entry that acts like a terminal to t...
What is the boundary in multipart/form-data?
...ollowing data to the web server:
name = John
age = 12
using application/x-www-form-urlencoded would be like this:
name=John&age=12
As you can see, the server knows that parameters are separated by an ampersand &. If & is required for a parameter value then it must be encoded.
So h...
What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls.
3 Answers
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In Matlab, when is it optimal to use bsxfun?
...t of good answers to Matlab questions on SO frequently use the function bsxfun . Why?
5 Answers
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Do I encode ampersands in ?
...L recommendations, the ampersand must be escaped e.g. as & in contexts like this. However, browsers do not require it, and the HTML5 CR proposes to make this a rule, so that special rules apply in attribute values. Current HTML5 validators are outdated in this respect (see bug report with co...
Sleep until a specific time/date
...n to nanoseconds (effectively more around milliseconds) use e.g. this syntax:
current_epoch=$(date +%s.%N)
target_epoch=$(date -d "20:25:00.12345" +%s.%N)
sleep_seconds=$(echo "$target_epoch - $current_epoch"|bc)
sleep $sleep_seconds
Note that macOS / OS X does not support precision below secon...
Why not use java.util.logging?
...till not convinced, JB Nizet makes an additional and potent argument:
Except the end user could have already done this customization for his
own code, or another library that uses log4j or logback. j.u.l is
extensible, but having to extend logback, j.u.l, log4j and God only
knows which oth...
Rich vs Anemic Domain Model [closed]
...use a Rich Domain Model over an Anemic Domain Model, and looking for good examples of the two.
10 Answers
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Why should casting be avoided? [closed]
...es (more or less) a fourth answer.
Since it's the one you didn't mention explicitly, I'll start with C. C casts have a number of problems. One is that they can do any of a number of different things. In some cases, the cast does nothing more than tell the compiler (in essence): "shut up, I know wha...
Can I 'git commit' a file and ignore its content changes?
...
Sure, I do exactly this from time to time using
git update-index --assume-unchanged [<file> ...]
To undo and start tracking again (if you forgot what files were untracked, see this question):
git update-index --no-assume-unchanged...