Useful Scripts Files

☘️ Features

• [c]: ensure use command on PATH, and check the command existence on PATH 👣
• [coat/taoc]: add --help/--version options 🚩

🍬 Improvements

• [find-in-jars]: add IFS= for read, more robust 💪
• file paths may contain leading spaces
• [show-busy-java-threads]:
• improve separator blank line output 💅 fix wrong blank line logic
• extract timestamp var to avoid inconsistency ⌚️
• use ${var##} instead of basename 🎛️
• faster, no subprocess fork
• use command realpath instead of function portableReadLink 🔗
• faster and without losing portability
• use bash builtin type -P instead of which command, faster 🐚

🛠️ Refactor

• [show-busy-java-threads]: rename global var USER -> WHOAMI 👤
• [uq]: use exponential operation instead of multiplication to calculate size 🧮
• [c]: rename functions 🔡
• extract UNAME var 🔠
• use Shell Arithmetic comparison instead of Conditional Expressions 🔢
• use ||/&& instead of one branch/one line if 🎰
• remove unnecessary file descriptor number 1 in redirections ➡️
• simplify and uniform the codes
• remove declare keyword for global vars, more consistent
• use upper-case var name for global readonly vars
• unset temp global vars after use
• unify error message format and refactor related functions ℹ️
• keep usage function simple
• use -s/-h option for optional argument of die function
• rename var, use COLOR_INDEX instead of COUNT
• small code cleanup
• merge colorPrint function if only one caller
• remove local nl=$'\n' declaration if only one usage
• remove unnecessary {} when use var
• use upper-case var name for global readonly vars
• use = instead of == in Conditional Expressions
• remove section comments for simple section
• improve/fix/add code comments

📚 Documentation

• update manual pages links to manned.org 📚
• use shellcheck item doc link instead of prolixity comments ✨

🚜 Build/CI

• upgrade GitHub actions; add dependabot.yml 🤖
• upgrade shunit2 lib

Have Fun! 💕 2024-04-12