sekrit: add rm command

While at it, fix a typo.

bin/sekrit.sh

@@ -35,6 +35,7 @@ Usage:
 	${0##*/} get key
 	${0##*/} has key
 	${0##*/} ls [keys ...]
+	${0##*/} rm [-f] key [key ...]
 
 If no value was provided on command line, add reads from stdin.
 .
@@ -116,8 +117,8 @@ sekrit_cp()
 
 sekrit_gen()
 {
-	len=43
 	OPTIND=1
+	len=43
 	while getopts l: flag; do
 		case "$flag" in
 		l)	len=$(to_number "$OPTARG") ||
@@ -179,6 +180,30 @@ sekrit_ls()
 	fi
 }
 
+sekrit_rm()
+{
+	OPTIND=1
+	fflag=
+	while getopts f flag; do
+		case "$flag" in
+		f)	fflag=-f ;;
+		*)	usage ;;
+		esac
+	done
+	shift $((OPTIND - 1))
+
+	[ $# -ge 1 ] || usage
+
+	for key; do
+		path=$(make_key_path "$key")
+		if [ ! -f "$path" ]; then
+			printf "%s: no data for key %s\n" "${0##*/}" "$key" >&2
+		else
+			rm -i $fflag "$path"
+		fi
+	done
+}
+
 set -e
 
 [ $# -ge 1 ] || usage
@@ -198,5 +223,6 @@ gen)	sekrit_gen "$@" ;;
 get)	sekrit_get "$@" ;;
 has)	sekrit_has "$@" ;;
 ls)	sekrit_ls "$@" ;;
+rm)	sekrit_rm "$@" ;;
 *)	usage ;;
 esac