file is an empty redirect, echo is not required for this but doesn’t hurt either
.
Okay, please try the following:
cat << _EOF_ > /etc/asound.conf
ctl.eq {
type equal
controls "/var/lib/dietpi/dietpi-config/.alsaequal.bin"
}
pcm.plugequal {
type equal
slave.pcm {
type plug
slave.pcm {
type hw
card 0
device 0
}
}
controls "/var/lib/dietpi/dietpi-config/.alsaequal.bin"
}
pcm.!default {
type plug
slave.pcm plugequal
slave.channels 2
}
ctl.!default {
type hw
card 0
}
_EOF_