2019-03-21

javax.mail.MessagingException: Could not convert socket to TLS;

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https://stackoverflow.com/questions/16115453/javamail-could-not-convert-socket-to-tls-gmail javax.mail.MessagingException: Could not conv...

openjdk.java.net vs jdk.java.net

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edited 6 months ago from 2019-Mar-21_pm034301 Note that while both  openjdk.java.net  (the OpenJDK project) and  jdk.java.net  (Open...

OpenJDK vs AdoptOpenJDK

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Updates@2019-Apr-01_pm040305: I'm using OpenJDK8U-jdk_x64_linux_hotspot_8u202b08 https://github.com/AdoptOpenJDK/openjdk8-binaries/r...
2019-03-19

WinSCP configure hostkey in winscp script

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What's WinSCP hostkey Before OpenSSH 6.8  ssh-keygen -lf <(ssh-keyscan localhost 2>/dev/null) Since OpenSSH 6.8, you hav...
2019-03-18

tar gzip with or without GZIP=-9

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target folder name: 2019_02 target folder size: 1.3G tar -cvzf 2019_02.default.tgz 2019_02 Compressed: 318M 2019_02.default.tgz ...

linux find files older than 365 days exclude multiple paths

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Navigate to target folder, search sub folders and sort files details older than 365 days with folder exclusion config below: find . -typ...
2019-03-15

OpenJDK variants vs each other and vs Oracle JDK

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Reference URL:  https://medium.com/@javachampions/java-is-still-free-c02aef8c9e04 OpenJDK variants vs each other and vs Oracle JDK ...

linux sort data size

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Google'ed by:  linux sort data size https://serverfault.com/questions/62411/how-can-i-sort-du-h-output-by-size Reference scrip...
2019-03-08

How to get the number of files in a folder as a variable?

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Reference URL:  https://stackoverflow.com/a/11132110/676104 How about: count = $ ( find .. - maxdepth 1 - type f | wc - l ) e...

linux avoid echo to email

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Maybe only happen while the sh script contains echo lines, and also schedule to crontab. Googled:  linux avoid echo to email Refer...

Linux, let vs set

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Reference URL:  https://community.qlik.com/t5/QlikView-App-Development/let-and-set-difference/td-p/301811   Celambarasan   ...
2019-03-07

Using mutt-1.4.2.3.tar.gz in CentOS 5.11 & 6.7

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After install using:  https://billson.blogspot.com/2019/03/centos-install-mutt-1423targz.html Then execute: /opt/Programs/mutt/bin/mutt ...
2019-03-06

CentOS 5.11 install mutt-1.4.2.3.tar.gz

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Searched:  CentOS install mutt from "mutt-1.4.2.3.tar.gz" Reference URL:  http://www.voidcn.com/article/p-wjuavxxu-dw.html ...
2019-03-05

VisualVM & ascii/UTF-8

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Removed Java VisualVM Java VisualVM is a tool that provides information about code running on a Java Virtual Machine. The   jv...

Should I recompile my java projects when upgrade my JRE/JDK

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Searched#1of2:  is that necessary to recompile java for jdk security upgrade Found: https://stackoverflow.com/questions/3846237/se...