Showing posts with label Java. Show all posts
Showing posts with label Java. Show all posts

Saturday, 17 August 2013

About Java Shell

This file gives instruction on how to install and run the Java Shell

Installation

  •     Java Shell comes in a zipped format - jshell.tar.gz
  •     Unzip the file in the directory where the Java Shell has to be installed
  •     The zipped file will expand to the following directory structure
                  jshell---
                                       
                                        |---- source ---( contains source code of java shell)
                                       
                                        |---- man1--- ( contains man pages for the commands)
                                      
                                        |---- classes---
                                                  |--- ( contains class files of the source code)
                                                  |--- help---( contains help files for the commands)
 
   

Run the Shell

  • The shell is written in java  and it makes use of java swing api. To run the shell JVM has to be installed on the machine .
  • Set the PATH and CLASSPATH environment variables appropriately . Make sure that the CLASSPATH includes swing classes.
  • To run the Shell go to the classes subdirectory of jshell . i.e. cd  jshell/classes
  • In the classes directory type at the comand prompt :  java  JShell to run the shell
  • The java shell is up and running

To get help on a command

  •   To see what all commands are  supported by Java Shell type  help from      the java shell
  •   To get help on a particular command type  help  commandname  

Man pages

  •    To see a manual entry on a command  go to the jshell directory .
  •     Type  man -M  .  commandname
 

Click to see the report on java shell

Click to download java shell source code