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How can I efficiently download a large file using Go?
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Note that io.Copy reads 32kb (maximum) from input and writes them to output, then repeats. So don't worry about memory.
– Moshe Revah
Jul 28 '12 at 0:11
1
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Bash Script: count unique lines in file
I have a large file (millions of lines) containing IP addresses and ports from a several hour network capture, one ip/port per line. Lines are of this format:
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How to fix a locale setting warning from Perl?
...settings:
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
My guess is you used ssh to connect to this older host from a newer desktop machine. It's common for /etc/ssh/sshd_config to contain
Ac...
How to properly seed random number generator
I am trying to generate a random string in Go and here is the code I have written so far:
9 Answers
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How to assert greater than using JUnit Assert?
...essage in case of failure; you can use that if you want to print that such-and-such wasn't greater than so-and-so.
You could also add hamcrest-all as a dependency to use matchers. See https://code.google.com/p/hamcrest/wiki/Tutorial:
import static org.hamcrest.MatcherAssert.assertThat;
import stat...
Getting “unixtime” in Java
...er using primitive long instead of autoboxing to Long, unless you want to handle the number as an Object (like put it into a Collection), again avoids unnecessary object creation
– brabster
Apr 8 '09 at 22:05
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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This is a recurring subject in Stackoverflow and since I was unable to find a relevant implementation I decided to accept the challenge.
I made some modifications to the squares demo present in OpenCV and the resulting C++ code below is able to detect a sheet of paper ...
What is the difference between MacVim and regular Vim?
...the terminal. Can anyone tell me what differences there are between MacVim and regular Vim?
4 Answers
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Structure padding and packing
...alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruct_A {
char a;
int b;
char c...
How to delete from a text file, all lines that contain a specific string?
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To remove the line and print the output to standard out:
sed '/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) –...