#!/bin/sh
port_net_echo() {
- [ -n "$pi_ifname" ] && grep "$pi_ifname" /proc/net/dev >/dev/null && {
+ [ -n "$pi_ifname" ] && grep -q "$pi_ifname" /proc/net/dev && {
if [ "$pi_preinit_net_messages" = "y" ] || [ "$pi_failsafe_net_message" = "true" ] && [ "$pi_preinit_no_failsafe_netmsg" != "y" ]; then
netmsg $pi_broadcast "$1"
- }
+ fi
}
}
if [ -z "$pi_ifname" ]; then
ifconfig $ifname 0.0.0.0 down
else
- grep "$pi_ifname" /proc/net/dev >/dev/null && {
+ grep -q "$pi_ifname" /proc/net/dev && {
ifconfig $pi_ifname 0.0.0.0 down
}
fi