Update chsh hook and add more hook commands

Author: nullpo-head

distrod_packer/resources/bin/adduser

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+ORIG="$(PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin command -v adduser)"
+if [ -t 0 ]; then
+    echo "[Distrod] Run 'sudo /opt/distrod/bin/distrod enable' after this command succeeds." >&2
+    echo "[Distrod] It's necessary for Systemd to work as the pseudo init process." >&2
+fi
+"$ORIG" "$@"

distrod_packer/resources/bin/chsh

@@ -1,8 +1,8 @@
 #!/bin/sh
 
-ORIG_CHSH=""$(which -a chsh | tail -n 1)""
+ORIG="$(PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin command -v chsh)"
 if [ -t 0 ]; then
-    echo "[Distrod] Run 'sudo /opt/distrod/distrod enable' after chsh succeeds." >&2
-    echo "[Distrod] It's necessary for Systemd to work as the init process." >&2
+    echo "[Distrod] Run 'sudo /opt/distrod/bin/distrod enable' after this command succeeds." >&2
+    echo "[Distrod] It's necessary for Systemd to work as the pseudo init process." >&2
 fi
-"$ORIG_CHSH" "$@"
+"$ORIG" "$@"

distrod_packer/resources/bin/useradd

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+ORIG="$(PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin command -v useradd)"
+if [ -t 0 ]; then
+    echo "[Distrod] Run 'sudo /opt/distrod/bin/distrod enable' after this command succeeds." >&2
+    echo "[Distrod] It's necessary for Systemd to work as the pseudo init process." >&2
+fi
+"$ORIG" "$@"