Clean up bash script

context/s3-purge.sh

@@ -6,23 +6,24 @@ export BUCKET_NAME
 EXPIRE_AGE_DAYS=$(cat /s3_expire_days)
 export EXPIRE_AGE_DAYS
 
-echo '==='
+echo '======'
 date
 
-s3cmd --config=/s3_config ls s3://"${BUCKET_NAME}" | while read -r line;
-  do
-    createDate=$(echo "$line"|awk '{print $1" "$2}')
-    createDate=$(date -d"$createDate" +%s)
-    olderThan=$(date -d"-$EXPIRE_AGE_DAYS days" +%s)
-    if [[ $createDate -lt $olderThan ]]
-      then
-        fileName=$(echo "$line"|awk '{print $4}')
-        echo "$fileName"
-        if [[ $fileName != "" ]]
-          then
-            s3cmd --config=/s3_config del "$fileName"
-        fi
-    fi
-  done;
+s3cmd --config=/s3_config ls s3://"${BUCKET_NAME}" | while read -r LINE;
+	do
+		CREATE_DATE=$(echo "$LINE" | awk '{print $1" "$2}')
+		CREATE_DATE=$(date -d"$CREATE_DATE" +%s)
+		OLDER_THAN=$(date -d"-${EXPIRE_AGE_DAYS} days" +%s)
+
+		if [[ $CREATE_DATE -lt $OLDER_THAN ]]
+			then
+				FILE_NAME=$(echo "$LINE" | awk '{print $4}')
+				echo "$FILE_NAME"
+				if [[ $FILE_NAME != "" ]]
+					then
+						s3cmd --config=/s3_config del "$FILE_NAME"
+				fi
+		fi
+	done;
 
 echo '---'