awesee · Jan 25, 2019
diff --git a/‎problems/valid-phone-numbers/file.txt
+3 b/‎problems/valid-phone-numbers/file.txt
+3
diff --git a/‎problems/valid-phone-numbers/valid_phone_numbers.bash
+5 b/‎problems/valid-phone-numbers/valid_phone_numbers.bash
+5
diff --git a/‎problems/valid-phone-numbers/valid_phone_numbers.go
-1 b/‎problems/valid-phone-numbers/valid_phone_numbers.go
-1
diff --git a/‎problems/valid-phone-numbers/valid_phone_numbers_test.go
-1 b/‎problems/valid-phone-numbers/valid_phone_numbers_test.go
-1
@@ -0,0 +1,3 @@
+987-123-4567
+123 456 7890
+(123) 456-7890
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+# Read from the file file.txt and output all valid phone numbers to stdout.
+
+grep -P '^(\d{3}-|\(\d{3}\) )\d{3}-\d{4}$' file.txt
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+987-123-4567`
	`2`	`+123 456 7890`
	`3`	`+(123) 456-7890`