3 at least make it minimally work
source | link
df -h | egrep -e Filesystem -e "/dev" -v sda1
df -h | egrep -e Filesystem -e "/dev" -v sda1
df -h | egrep -e Filesystem -e "/dev" -v
2 Formatting
source | link

df -h | egrep -e Filesystem -e "/dev" -v sda1

df -h | egrep -e Filesystem -e "/dev" -v sda1

df -h | egrep -e Filesystem -e "/dev" -v sda1

df -h | egrep -e Filesystem -e "/dev" -v sda1
1
source | link

df -h | egrep -e Filesystem -e "/dev" -v sda1