Added solutions

2024/day-1/solution-1.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+INPUT_FILE=input.txt
+
+paste \
+  <(awk '{print $1}' $INPUT_FILE | sort -n ) \
+  <(awk '{print $2}' $INPUT_FILE | sort -n ) |
+  awk '{ $1 > $2 ? diff = ($1 - $2) : diff = ($2 - $1) ; print diff}' |
+  paste -s -d "+" | 
+  bc