Move prep and psub from Perl to Utility

modules/perl/README.md

@@ -50,12 +50,6 @@ Aliases
   - `pbu` uninstalls a Perl version.
   - `pbx` temporarily sets the Perl version to use.
 
-Functions
----------
-
-  - `prep` provides a grep-like pattern search.
-  - `psub` provides a sed-like pattern substitution.
-
 Authors
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modules/utility/README.md

@@ -140,6 +140,11 @@ Functions
 
   - `psu` displays user owned processes status.
 
+### Search and Replace
+
+  - `prep` provides a grep-like pattern search.
+  - `psub` provides a sed-like pattern substitution.
+
 Authors
 -------