Wrote script to clean up LaTeX build files

Used Shellcheck to change all my scripts to bash and lint them. Exported my
scripts to $PATH. Fixed my liked Arch packages.

scripts/texclear

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Delete TeX build files when exiting from Vim or call on directory/directly to
+# remove from there.
+
+ext_list="/home/kevin/linux-config/txt/tex-build-files.txt"
+raw_exts="$(tr '\n' '|' < $ext_list)"
+exts="(${raw_exts::-1})"
+echo "$exts"
+find_flags=(-maxdepth 1 -type f -regextype gnu-awk -regex)
+
+remove_build_files () {
+	regex=$2
+	# echo find "$1" "${find_flags[@]}" "$regex" -delete -print
+	eval find "$1" "${find_flags[@]}" "$regex" -delete -print
+}
+
+# when less than one argument, remove build files in current dir
+if [[ "$#" -lt 1 ]]; then
+	regex=(\"^.*\\."$exts"$\")
+	remove_build_files . "${regex[0]}"
+else
+	case "$1" in
+		# if tex file, remove only build files for that file
+		*.tex)
+			file=$(readlink -f "$1")
+			dir=$(dirname "$file")
+			base="${file%.*}"
+			regex=(\"^"$base"\\."$exts"$\")
+			remove_build_files "$dir" "${regex[0]}" ;;
+		# remove all build files in directory if given valid one
+		*)
+			if [[ -d "$1" ]]; then
+				regex=(\"^.*\\."$exts"$\")
+				remove_build_files "$1" "${regex[0]}"
+			else
+				printf "Give .tex file or directory as argument.\\n"
+			fi ;;
+	esac
+fi