rename add_group to add_groupto and write real add_group scripd

dc/add_group.sh

 #!/bin/bash
 
-samba-tool group addmembers "$1" "$2"
+# Written by Vitaly Lipatov <lav@etersoft.ru> (c) 2012, 2017
+# TODO
+NISDOMAIN=etersoft
+
+# TODO:
+# get last group ID
+# getent group | cut -d":" -f3 | sort -n
+
+fatal()
+{
+       echo "$*" >&2
+       exit 1
+}
+
+FORCE=
+if [ "$1" = "--force" ] ; then
+    FORCE=1
+    shift
+fi
+
+RGROUP="$1"
+
+[ -n "$RGROUP" ] || fatal "Run with group name arg"
+
+if [ -n "$FORCE" ] ; then
+    samba-tool group delete "$RGROUP"
+fi
+
+RGID="$2"
+[ -n "$RGID" ] || fatal "Can't get gid for $RGROUP (sec arg)"
+
+samba-tool group add "$RGROUP" --gid-number="$RGID" --nis-domain="$NISDOMAIN"
+

dc/add_groupto.sh

+#!/bin/bash
+
+# group user
+GROUP="$1"
+shift
+samba-tool group addmembers "$GROUP" "$@"