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.
2018-01-21 22:08:43 +00:00 · 2018-01-21 22:08:43 +00:00 · 2229ae89a6
parent c40b443072
commit 2229ae89a6
1 changed files with 1 additions and 1 deletions
--- 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