convert snac-admin to bash

examples/snac-admin

@@ -1,43 +1,51 @@
-#!/usr/bin/env fish
+#!/usr/bin/env bash
 ##
 ## SNAC-ADMIN
 ##  a simple script that is supposed to improve
 ##  a snac admin's life, especially when snac
 ##  is being run as a systemd.unit with
 ##  DynamicUser=yes enabled.
-##  Please make sure to adjust SNAC_BASEDIR
+##  Please make sure to adjust SNAC_DIR
 ##  down below according to your setup.
 ##
 ## USAGE
 ##  snac-admin state
 ##  snac-admin adduser rikkert
+##  snac-admin block example.org
+##  snac-admin verify_links lisa
+##  ...
 ##
 ## Author: @chris@social.shtrophic.net
 ## 
 ## Released into the public domain 
 ##
 
-set -l SNAC_PID 	$(pidof snac)
-set -l SNAC_BASEDIR	/var/lib/snac
+set -e
 
-if test -z $SNAC_PID
-	echo "no such process" 1>&2
+SNAC_PID=$(pidof snac)
+SNAC_DIR=/var/lib/snac
+
+SNAC_VERB=$1
+shift
+
+if [ -z $SNAC_PID ]; then
+	echo "no such process" >&2
 	exit 1
-end
+fi
 
-if test $(id -u) -ne 0
-	echo "not root" 1>&2
+if [ $(id -u) -ne 0 ]; then
+	echo "not root" >&2
 	exit 1
-end
+fi
 
-if ! test -d $SNAC_BASEDIR
-	echo "$SNAC_BASEDIR does not exist" 1>&2
+if [ ! -d $SNAC_DIR ]; then
+	echo "$SNAC_DIR is not a directory" >&2
 	exit 1
-end
+fi
 
-if test -z $argv[1]
-	echo "no arguments" 1>&2
+if [ -z $SNAC_VERB ]; then
+	echo "no arguments" >&2
 	exit 1
-end
+fi
 
-nsenter -ae -S follow -G follow -t $SNAC_PID -- snac $argv[1] $SNAC_BASEDIR $argv[2..]
+nsenter -ae -S follow -G follow -t $SNAC_PID -- snac $SNAC_VERB $SNAC_DIR $@