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Tag: confusion

Regular expression – Perl if statement confusion

This code is an if statement; I want to test whether $rtgene contains trn.
I tested the code with $rtgene = nad3:

if ($rtgene!~/trn/){
$end=$data[$i][0]+100;
}
else{< br />$end =$data[$i][1]

October 17, 2021By Simo Regexp confusion, expression, perl, regular, statementLeave a Comment

Ruby – self-made rights confusion

I installed Homebrew from my administrator account. If I run Brew Doctor from that account, I have no errors, but if I run Brew Doctor from a non-administrator user account, I will receive warnings

October 16, 2021By Simo Macos confusion, homemade, permissions, rubyLeave a Comment

Jetty, Tomcat, Nginx, Geronimo, Glassfish: I am confused

As a person in a new Java EE ecosystem, I am confused to share a large number of keywords with these products. Half of them come from the Apache Software Foundation.

Can someone give me a sho

October 13, 2021By Simo Jetty confusion, Geronimo, Glassfish, jetty, nginx, TomcatLeave a Comment

Confused by Libcap (PCAP) and wireless

Background: I am teaching myself packet sniffing. I run a very simple server in one shell, run telnet from another shell, and then try different methods to sniff the traffic .When I use a raw socke

October 11, 2021By Simo Wireless confusion, Libcap, PCAP, WirelessLeave a Comment

Confusion between C and OpenGL matrix order (main and column main)

I am very confused about the definition of a matrix. I have a matrix class that stores a floating point number based on the following observations[16], I assume it is the main line: < /p>

flo

September 29, 2021By Simo C & C++ between, Column, confusion, line, Main, Matrix, OpenGL, orderLeave a Comment
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