jhat: Java heap analysis tool
jhat is a Java heap analysis tool. Analyze a heap dump (from jmap), view via HTTP on port 7000: jhat dump_file.bin Analyze a heap dump, specifying an alternate port for the HTTP server: jhat -p port …
Jest: zero-configuration JavaScript testing platform
jest is a zero-configuration JavaScript testing platform. Run all available tests: jest Run the test suites from the given files: jest path/to/file1 path/to/file2 ... Run the test suites from files …
Jenv: Manage the "JAVA_HOME" environment variable
jenv is a command-line tool to manage the “JAVA_HOME” environment variable. Add a Java version to jEnv: jenv add path/to/jdk_home Display the current JDK version used: jenv version Display …
Jello: a command-line JSON processor using Python syntax
jello is a command-line JSON processor using Python syntax. Pretty-print JSON or JSON-Lines data from stdin to stdout: cat file.json | jello Output a schema of JSON or JSON Lines data from stdin to …
Jekyll: static site generator | command-line cheat-sheet
jekyll is a simple, blog-aware, static site generator. Generate a development server that will run at http://localhost:4000/ : jekyll serve Enable incremental regeneration: jekyll serve --incremental …
jdupes: duplicate file finder
jdupes is a command-line program to find duplicate files. A powerful duplicate file finder and an enhanced fork of fdupes. Search a single directory: jdupes path/to/directory Search multiple …
jdeps: Java class dependency analyzer
jdeps is a command-line program to analyze dependencies of Java class. It is Java class dependency analyzer. Analyze the dependencies of a .jar or .class file: jdeps path/to/filename.class Print a …
jc: convert the output of multiple commands to JSON
jc is a command-line program to convert the output of multiple commands to JSON. Convert command output to JSON via pipe: ifconfig | jc --ifconfig Convert command output to JSON via magic syntax: jc …
jbang: create, edit and run self-contained source-only Java programs
jbang is a command-line program to easily create, edit and run self-contained source-only Java programs. Initialize a simple Java class: jbang init path/to/file.java Initialize a Java class (useful …
disassemble class files and list them | javap cheat-sheeet
javap is a command-line to disassemble class files and list them. Disassemble and list one or more .class files: javap path/to/file1.class path/to/file2.class ... Disassemble and list a built-in class …