validate file content with bash Regular Expressions + Linux

Question

how to validate the following file content

that should be include single integer/float number by bash Regular Expression or any other idea with awk/sed

 cat  /var/VERSION/Version_F35_project_usa
 2.8

score -1 · Accepted Answer · answered Aug 14 '17 at 19:46

-1

Your regexp is /\A\d+.?\d+\Z/g

answered Aug 14 '17 at 19:46

Ivan Mastrenko

You would need to give at least an example of how to use that regex. – Sven Aug 14 '17 at 20:57

1 Answers1