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How many threads can a Java VM support?
...he thread stack size. java -Xss100k allowed me to create 19702 threads in Linux.
– Steve K
Apr 18 '09 at 17:40
21
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In Docker, what's the difference between a container and an image? [duplicate]
... docker tutorial to that: A container is a stripped-to-basics version of a Linux operating system. An image is software you load into a container.
– orad
May 3 '16 at 21:23
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Going to a specific line number using Less in Unix
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From within less (in Linux):
g and the line number to go forward
G and the line number to go backwards
Used alone, g and G will take you to the first and last line in a file respectively; used with a number they are both equivalent.
An ex...
What does 'foo' really mean?
... such name is needed. Wikipedia calls these names Metasyntactic Variables. Python programmers supposedly use spam, eggs, ham, instead of foo, etc.
There are good uses of foo in SA.
I have also seen foo used when the programmer can't think of a meaningful name (as a substitute for tmp, say), but I ...
fatal: could not read Username for 'https://github.com': No such file or directory
...his message within a Docker container running on gitlab. The base image is python:3.7-slim. So it is not Windows related.
– Martin Thoma
Jun 17 '19 at 14:05
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Current time in microseconds in java
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On Linux, System.nanoTime() calls clock_gettime(CLOCK_MONOTONIC,_). Brian Oxley dug into Java's source code to find this nugget.
– David Weber
Aug 12 '14 at 13:18
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Windows batch file file download from a URL
.../wget.htm
or URL2File:
http://www.chami.com/free/url2file_wincon.html
In Linux, you can use "wget".
Alternatively, you can try VBScript. They are like command line programs, but they are scripts interpreted by the wscript.exe scripts host. Here is an example of downloading a file using VBS:
https...
Generate random 5 characters string
...k.com/blog/20121205114003-exploit-information-leaks-in-random-numbers-from-python-ruby-and-php
EDIT:
If you have OpenSSL support in PHP, you could use openssl_random_pseudo_bytes():
<?php
$length = 5;
$randomBytes = openssl_random_pseudo_bytes($length);
$characters = '0123456789ABCD...
warning: implicit declaration of function
...section will list any header files that need to be included. Or try http://linux.die.net/man/ This is the online man pages they are hyperlinked and easy to search.
Functions are often defined in the header files, including any required header files is often the answer. Like cnicutar said,
You a...
Can I define a class name on paragraph using Markdown?
... Works pretty well with Markdown Preview (Sublime 3) that uses the builtin Python Markdown parser.
– Mihai
Dec 7 '17 at 22:43
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