Remove an unneded use of cat

Tiny speedup; otherwise no functional change.
QubesOS · May 1, 2023 · 8d52756 · 8d52756
1 parent 41fff23
commit 8d52756
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/network/vif-route-qubes b/network/vif-route-qubes
@@ -115,7 +115,7 @@ case "$command" in
         ipcmd='add'
         nftables_cmd=add
         cmdprefix=''
-        ipv6_disabled=$(cat "/proc/sys/net/ipv6/conf/$vif/disable_ipv6" || echo 1)
+        read -r ipv6_disabled < "/proc/sys/net/ipv6/conf/$vif/disable_ipv6" || ipv6_disabled=1
         interfaces=''
         separator=''