{"id":2407,"date":"2017-12-08T09:35:42","date_gmt":"2017-12-08T09:35:42","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=2407"},"modified":"2020-01-09T09:54:01","modified_gmt":"2020-01-09T09:54:01","slug":"how-to-read-a-properties-file-through-script","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/how-to-read-a-properties-file-through-script\/","title":{"rendered":"How to read a .properties file through script"},"content":{"rendered":"

rajeshkumar created the topic: How to read a .properties file through script<\/strong><\/p>\n

The easy way to do it is to note that a Java properties file has the same format as a basic shell script.<\/p>\n

However, there’s a trick to it. If you just run the properties file like so:<\/p>\n

sh appl.properties<\/p>\n

The assignments will be made at the sub-level, then discarded when the properties file (script) ends execution.<\/p>\n

So to get the properties in a calling script, you need to use the “source” command:<\/p>\n

. appl.properties<\/p>\n

Note that the space after the initial dot is very important!<\/p>\n

To reference shell variable assignments, you use the “$” to indicate variable substitution.<\/p>\n

So, to put it all together:<\/p>\n

# #!\/bin\/sh
\n# # Sample shell script to read and act on properties
\n#
\n# # source the properties:
\n# . appl.properties
\n#
\n# # Then reference then:
\n# echo \"My name is $name and I'm $age years old.\"<\/code><\/p>\n

Regards,
\nRajesh Kumar
\nTwitt me @ twitter.com\/RajeshKumarIn<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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