awk怎么删除空白行

小编给大家分享一下awk怎么删除空白行，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

cat /etc/default/docker
# Here in Debian, this file is sourced by:
# - /etc/init.d/docker (sysvinit)
# - /etc/init/docker (upstart)
# - systemd's docker.service

# Use of this file for configuring your Docker daemon is discouraged.

# The recommended alternative is "/etc/docker/daemon.json", as described in:
# https://docs.docker.com/v1.11/engine/reference/commandline/daemon/#daemon-configuration-file
DOCKER_OPTS=" --bip=172.17.2.1/24 --ip-masq=false --mtu=1450"
# If that does not suit your needs, try a systemd drop-in file, as described in:
# https://docs.docker.com/v1.11/engine/admin/systemd/#custom-docker-daemon-options

awk '!/#/{if($0!="")print}' /etc/default/docker
DOCKER_OPTS=" --bip=172.17.2.1/24 --ip-masq=false --mtu=1450"

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