diff --git a/extract_utils.sh b/extract_utils.sh
index ff64af3..404359b 100644
--- a/extract_utils.sh
+++ b/extract_utils.sh
@@ -1047,7 +1047,7 @@ function parse_file_list() {
             PRODUCT_COPY_FILES_FIXUP_HASHES+=("$FIXUP_HASH")
         fi
 
-    done < <(egrep -v '(^#|^[[:space:]]*$)' "$LIST" | LC_ALL=C sort | uniq)
+    done < <(grep -v -E '(^#|^[[:space:]]*$)' "$LIST" | LC_ALL=C sort | uniq)
 }
 
 #
@@ -1243,7 +1243,7 @@ function init_adb_connection() {
     fi
 
     # Retrieve IP and PORT info if we're using a TCP connection
-    TCPIPPORT=$(adb devices | egrep '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+[^0-9]+' \
+    TCPIPPORT=$(adb devices | grep -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+[^0-9]+' \
         | head -1 | awk '{print $1}')
     adb root &> /dev/null
     sleep 0.3