Recursive Grep

The purpose is to be to track down useful code quickly and without the usual fussing around.

• Provide search string(s)
• Directory to be searched.
• File type(s) to be searched.

Lists all occurrences.

Drag and Drop file pathname to lower pane to edit the file.

Technologies

• Java
• Swing
• Drag and Drop

Usage

To execute app from the command line, use java-grep

or

/Applications/java-grep

Development

At Github, create repository java-grep

repository: https://github.com/johnvincentio/java-grep

cd /Users/jv/Desktop/MyDevelopment/github/java/Utilities
create-repo java-grep

Remove non-relevant files.

Add README.md

cd java-grep

Create README.md

For details, see grep/README.md

Start Eclipse

in Finder

• select /Users/jv/Desktop/MyDevelopment/github/java/Utilities/java-grep
• Right click, Services
  • eclipse-jee

Create Java Project

• File, New, Project
• Java Project

Settings

• Project Name: grep

• Use default location

• JRE; Use an execution environment JRE: JavaSE-1.8

• Create separate folders for sources and class files

• Default output folder: grep/classes

Package

Select src

• Right click, New, Package
• io.johnvincent.grep

Copy code to this package and change package names.

Script file

Add /Users/jv/Desktop/MyDevelopment/github/java/Utilities/java-grep/grep/grepdir.command

#!/bin/sh
#
# script to run java app grepdirGui
#
DEV_HOME=/Users/jv/Desktop/MyDevelopment/github/java/Utilities/java-grep/grep
#
cd $DEV_HOME
#
MYCP=$DEV_HOME/classes:$DEV_HOME/Jars/log4j-1.2.13.jar
#
MY_FILE=/Users/jv/Desktop/MyDevelopment/github/java/Utilities/java-grep/grep/grepdir.properties
#
java -cp $MYCP io.johnvincent.grepgui.GrepdirGui $MY_FILE

Create Symbolic Link

ln -s /Users/jv/Desktop/MyDevelopment/github/java/Utilities/java-grep/grep/grepdir.command /Users/jv/Desktop/MyDevelopment/github/repo_shell_scripts/mac/unix-scripts/bin/java-grep

Save Grep as a Mac App

Execute from Finder

• Go, Applications
• Execute: Automator (or Automator.app)

Select

• Quick Action, or
• Application

and then select Choose

From the middle pane, double click Run Shell Script

Shell: /bin/bash Pass input: as arguments

/Users/jv/Desktop/MyDevelopment/github/repo_shell_scripts/mac/unix-scripts/bin/java-grep

To save:

• File, Save:
• Save as: java-grep
• Where: Applications

saves java-grep.app in Applications.