Extract keys and values from Java properties files

Open a Terminal window and type the command below:

cut -d = -f 1 filename.properties | tr ‘,’ ‘n’ | sed "/^$/d" > output_keys.txt

Original file:

keyname.url=https://www.example.com/foo/#
keyname.viewdetails=View details...
keyname.vieweventlabel=View Event
keyname.buttonViewEvent.src=http://www.example.com/images/buttonViewEvent.png
keyname.local.src=<a href=http://www.example.com/>Test</a>

Output:

keyname.url
keyname.viewdetails
keyname.vieweventlabel
keyname.buttonViewEvent.src
keyname.local.src

To extract values, type the following command in Terminal:

grep 'keyname' filename.properties | cut -d "=" -f2- | sed 's/^[[:space:]]*//;s/[[:space:]]*$//' > output_values.txt

 Output:

https://www.example.com/foo/#
View details...
View Event
http://www.example.com/images/buttonViewEvent.png
<a href=http://www.example.com/>Test</a>

The output of both files can be pasted in Numbers in separate columns and exported as a CSV file.