Day 8

08/02.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+sum=0
+while read line; do
+  digits=' '$(sed -s 's/ | .*$//' <<< $line)' '
+  number=( $(sed -e 's/.* | //' -e 's/ /  /g' <<< $line) )
+  decrypted_number=()
+  digit_1=$(sed 's/^.* \([a-z]\{2\}\) .*$/\1/' <<< $digits)
+  digit_4=$(sed 's/^.* \([a-z]\{4\}\) .*$/\1/' <<< $digits)
+  digit_4_minus_1=$(sed -e "s/${digit_1:0:1}//" -e "s/${digit_1:1:1}//" <<< $digit_4)
+  for i in ${number[@]}; do
+    if [ ${#i} -eq 2 ]; then
+      decrypted_number+=( 1 )
+    elif [ ${#i} -eq 3 ]; then
+      decrypted_number+=( 7 )
+    elif [ ${#i} -eq 4 ]; then
+      decrypted_number+=( 4 )
+    elif [ ${#i} -eq 5 ]; then
+      if [[ $i == *"${digit_1:0:1}"* ]] && [[ $i == *"${digit_1:1:1}"* ]]; then
+        decrypted_number+=( 3 )
+      elif [[ $i == *"${digit_4_minus_1:0:1}"* ]] && [[ $i == *"${digit_4_minus_1:1:1}"* ]]; then
+        decrypted_number+=( 5 )
+      else
+        decrypted_number+=( 2 )
+      fi
+    elif [ ${#i} -eq 6 ]; then
+      if [[ $i == *"${digit_4:0:1}"* ]] && [[ $i == *"${digit_4:1:1}"* ]] && \
+	      [[ $i == *"${digit_4:2:1}"* ]] && [[ $i == *"${digit_4:3:1}"* ]]; then
+        decrypted_number+=( 9 )
+      elif [[ $i == *"${digit_1:0:1}"* ]] && [[ $i == *"${digit_1:1:1}"* ]]; then
+        decrypted_number+=( 0 )
+      else
+        decrypted_number+=( 6 )
+      fi
+    elif [ ${#i} -eq 7 ]; then
+      decrypted_number+=( 8 )
+    fi
+  done
+  temp_number=$(sed -e 's/ *//g' -e 's/^0*//' <<< "${decrypted_number[@]}")
+  sum=$((sum+temp_number))
+done
+echo $sum