/dev/null

/dev/null

script.sh > /dev/null 2>&1

2>/dev/null

apt -qq -y update > /dev/null && apt upgrade -y > /dev/null &

curl -sS -D - https://google.com -o /dev/null

Network speed:

pv </dev/zero | ssh REMOTE_SERVER 'cat >/dev/null'

See also

• stdout, printf
• /dev/, /dev/loop, /dev/zero, /dev/fd/ /dev/kvm, /dev/null, /dev/loop, /dev/rfkill, /dev/shm, /dev/nbd, /dev/xvda, /dev/nvme, /dev/sda, /dev/vda
• FHS, /proc/, /proc/net/, /boot/, /run/, /dev/, /usr/, /var/run/, /etc/, /var/, /var/lib/ /var/log/, /var/www/, /opt/, /lib/, /sys/, /proc/kcore, /proc/sys/, /proc/sys/vm/, /snap/, /mnt/, /mnt/data, /var/opt/, /usr/bin/, /lib/, /proc/$PID/, /proc/self/