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Getting image dimensions without reading the entire file
... This function is perfect on windows. but it not working on linux, it will still read entire file on linux. (.net core 2.2)
– zhengchun
Jan 10 '19 at 7:12
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Finding Number of Cores in Java
...");
} else if (isUnix()) {
System.out.println("This is Unix or Linux");
} else if (isSolaris()) {
System.out.println("This is Solaris");
} else {
System.out.println("Your OS is not support!!");
}
}
public static boolean isWindows() {
return (OS.indexOf("w...
Pass ruby script file to rails console
..._root")"
bundle exec rails runner "eval(File.read '$rp')"
}
relpath() {python -c "import os.path; print os.path.relpath('$1','${2:-$PWD}')";}
Example:
cd ~/rails_project/app/helpers
rr my_script.rb
Based on @moritz's answer here. I changed it, since the working directory for File.read is th...
Mock vs MagicMock
...is the more capable class it makes a sensible one to use by default." docs.python.org/dev/library/…
– Robino
Sep 10 at 11:57
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Alternatives to gprof [closed]
...is a relatively new tool for profiling the kernel and user applications on Linux I decided to add this information.
First of all - this is a tutorial about Linux profiling with perf
You can use perf if your Linux Kernel is greater than 2.6.32 or oprofile if it is older. Both programs don't requir...
Simple C example of doing an HTTP POST and consuming the response
...
Handle added.
Added Host header.
Added linux / windows support, tested (XP,WIN7).
WARNING: ERROR : "segmentation fault" if no host,path or port as argument.
#include <stdio.h> /* printf, sprintf */
#include <stdlib.h> /* exit, atoi, malloc, free */
#i...
How to sort a list of strings?
What is the best way of creating an alphabetically sorted list in Python?
11 Answers
1...
What is the difference between JDK and JRE?
...is purpose, the JRE contains some .dll (Windows) or .dylib (macOS) or .so (Linux) files under bin/ or lib/ with supporting, system-specific native binary code.
The JDK is also a set of directories. It is a superset of the JRE, with some additions:
bin/ has been enlarged with development tools. T...
Using awk to remove the Byte-order mark
...
Using GNU sed (on Linux or Cygwin):
# Removing BOM from all text files in current directory:
sed -i '1 s/^\xef\xbb\xbf//' *.txt
On FreeBSD:
sed -i .bak '1 s/^\xef\xbb\xbf//' *.txt
Advantage of using GNU or FreeBSD sed: the -i parameter m...
Remote Connections Mysql Ubuntu
...lsof does not return or is not found you can install it HERE based on your Linux distribution. You do not need lsof to make things work, but it is extremely handy when things are not working as expected.
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