Performance / Optimization

1. Practical Performance
 - gprof
 - PAPI
 - Callgrind
 - Compiler Flags

1.1
 - IA-32 (32 bit, intel architecture 32 bit, i386): the 32 bit version of the x86 instruction set
 - AMD64 (64 bit, x64, x86_64, AMD64); the 64 bit version of the x86 instruction set
1.2 SIMD
 SISD (single instruction, single data) vs. SIMD (single instruction, multiple data)
 - SIMD 병렬 프로그래밍

Source Code Highlight

1. Syntax Highlight Code In Word Documents
2. Color Scripter
3. Online syntax highlighting for the masses!

Duplicated code detection

1. PMD (https://pmd.github.io/)
CPD (copy paste detector)
If you use the Java 11 or more version, please use the PMD 6.11.0 or more

windows
> bin\cpdgui.bat

linux
$ ./run.sh cpd --minimum-tokens 100 -- files /usr/local/java/src/java
https://stackoverflow.com/questions/53260053/current-eclipse-plugin-for-duplicated-code



2. ConQAT
ConQAT end of life
You can download old versions from here.

About "Shell Script"

Writing Shell Scripts - The Beginner's Guide
#!: hashbang or shebang
#! /bin/bash: it is a convention, not a rule.
Why do you need to put #!/bin/bash at the beginning of a script file?



And
sysadmin execute command - How to use SSH to run a shell script on a remote machine?