fzf-preview.sh: Check the number of arguments

junegunn · Oct 29, 2023 · 1cfa3ee · 1cfa3ee
1 parent 9a95cd5
commit 1cfa3ee
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/bin/fzf-preview.sh b/bin/fzf-preview.sh
@@ -7,7 +7,12 @@
 # - https://github.com/hpjansson/chafa
 # - https://github.com/sharkdp/bat
 
-file=$1
+if [[ $# -ne 1 ]]; then
+  >&2 echo "usage: $0 FILENAME"
+  exit 1
+fi
+
+file=${1/#\~\//$HOME/}
 type=$(file --mime-type "$file")
 
 if [[ ! $type =~ image/ ]]; then