The ajar tool is an alternative interface to the jar tool that you use to create and manipulate Java™ ARchive (JAR) files. You can use the ajar tool to manipulate both JAR files and ZIP files.
The ajar tool lists the contents of JAR files, extracts from JAR files, creates new JAR files, and supports many of the ZIP formats just as the jar tool does. Additionally, the ajar tool supports adding and deleting files in existing JAR files.
The ajar tool is available using the Qshell Interpreter. For more details, see ajar - Alternative Java archive.