Had to know what packages would be affected by a name change from a table.
In other words:
Just want to know in what files (an how often) the string ‘app_logging’ occurs in files in the working-dir
$ grep app_logging * | cut -f1 -d’:’ | uniq -c
9 app_def.pkb
3 app_def.pks
6 app_err.pks
3 app_set_to_def.pkb
1 app_set_to_def.pks
1 app_sys.pks
(explanation of the output: string found 9 times in app_def.pkb, 3 times in app_def.pks, etc..).