From b2959f0f1278ef71b92654338d7796a99ce59722 Mon Sep 17 00:00:00 2001
From: ChenYing Kuo <evshary@gmail.com>
Date: Mon, 6 Nov 2023 17:41:14 +0800
Subject: [PATCH] Bugfix: sh (dash) dose not support `&> /dev/null`. (#576)

---
 zenohd/.deb/postinst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/zenohd/.deb/postinst b/zenohd/.deb/postinst
index 62313e0b2f..cd72383680 100644
--- a/zenohd/.deb/postinst
+++ b/zenohd/.deb/postinst
@@ -20,12 +20,12 @@ set -e
 
 case "$1" in
     configure)
-        if ! command -v systemctl &> /dev/null
+        if ! command -v systemctl > /dev/null 2>&1
         then
             echo "WARNING: 'systemctl' not found - cannot install zenohd as a service."
             exit 0
         fi
-        id -u zenohd  &> /dev/null || useradd -r -s /bin/false zenohd
+        id -u zenohd > /dev/null 2>&1 || useradd -r -s /bin/false zenohd
         mkdir -p /var/zenohd
         chown zenohd:zenohd /var/zenohd
         systemctl daemon-reload