From 2229ae89a642a90e14c5d25608c5edbf653c3f84 Mon Sep 17 00:00:00 2001
From: Andrew Scheller <github@loowis.durge.org>
Date: Sun, 21 Jan 2018 22:08:43 +0000
Subject: [PATCH] Don't allow a directory to be selected

The `-e` flag checks for a file _or_ a directory of that name. The `-f` flag checks only for files.
---
 pishrink.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pishrink.sh b/pishrink.sh
index 447c7c4..0b317b1 100755
--- a/pishrink.sh
+++ b/pishrink.sh
@@ -19,7 +19,7 @@ img="$1"
 if [[ -z "$img" ]]; then
   usage
 fi
-if [[ ! -e "$img" ]]; then
+if [[ ! -f "$img" ]]; then
   echo "ERROR: $img is not a file..."
   exit -2
 fi