f2a4b2b17bbf9103dd90d23a73163e9b4e0e47f1

 1diff --git a/plugins/genpass/genpass.plugin.zsh b/plugins/genpass/genpass.plugin.zsh
 2index e7f86bf7a1a4dd46ba0426e9152f21b4212dad37..e6a1cef348ff2611fcfa4c207b638d6521358357 100644
 3--- a/plugins/genpass/genpass.plugin.zsh
 4+++ b/plugins/genpass/genpass.plugin.zsh
 5@@ -73,8 +73,19 @@ genpass-monkey() {
 6 
 7 genpass-xkcd() {
 8   # Generates a 128-bit XKCD-style passphrase
 9-  # EG, 9-mien-flood-Patti-buxom-dozes-ickier-pay-ailed-Foster
10+  # e.g, 9-mien-flood-Patti-buxom-dozes-ickier-pay-ailed-Foster
11   # Can take a numerical argument for generating extra passwords
12+
13+  if (( ! $+commands[shuf] )); then
14+    echo >&2 "$0: \`shuf\` command not found. Install coreutils (\`brew install coreutils\` on macOS)."
15+    return 1
16+  fi
17+
18+  if [[ ! -e /usr/share/dict/words ]]; then
19+    echo >&2 "$0: no wordlist found in \`/usr/share/dict/words\`. Install one first."
20+    return 1
21+  fi
22+
23   local -i i num
24 
25   [[ $1 =~ '^[0-9]+$' ]] && num=$1 || num=1
26@@ -90,6 +101,6 @@ genpass-xkcd() {
27 
28   for i in {1..$num}; do
29     printf "$n-"
30-    printf "$dict" | shuf -n "$n" | paste -sd '-'
31+    printf "$dict" | shuf -n "$n" | paste -sd '-' -
32   done
33 }