diff --git a/.gitignore b/.gitignore
index f96622c..b68d9be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ tibetan-lexicon-layout
 /ignored-folder/
 *.epub
 /content/ignored-folder/*
+*.bbl
diff --git a/clean b/clean
new file mode 100755
index 0000000..cdf0a38
--- /dev/null
+++ b/clean
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+FEXT=("pdf" "tex" "aux" "log" "toc" "out" "html" "lol" "lot" "epub" "bbl")
+DIRS=("auto" "_minted*" "svg-inkscape")
+
+for e in ${FEXT[*]}; do
+    fd -uu -e "$e" -x rm {}
+done
+
+for d in ${DIRS[*]}; do
+    fd -uu -t d "$d" -x rm -r {}
+done
diff --git a/clean.fish b/clean.fish
deleted file mode 100755
index 37aa3ed..0000000
--- a/clean.fish
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env fish
-set delfname "*.pdf" "*.tex" "*.aux" "*.log" "*.toc" "*.out" "*.html" "*.lol" "*.lot" "*.epub"
-set deldname "auto" "_minted*" "svg-inkscape"
-for f in $delfname
-    find -type f -name $f -delete
-end
-
-for d in $deldname
-    find -type d -name $d -exec rm -r {} +
-end