Grep

Find some text in many file inside a folder

display only the file that are not gunzip 

grep and exclude or -v

In a directory:

[root@VRS4 openvswitch]# ls | grep gz -v
health.xml
nuageMon.log
nuageMon.log-20150910
nuage-rpc.log
nuage-rpc.log-20151103
nuage-service-extension-config.log
nuage-service-extension-config.log-20151030
nuage-SysMon.log
nuage-SysMon.log-20151030
nuage-vlan-config.log
nuage-vrs-config.log
nuage-vrs-config.log-20151030
ovsdb-server.log
ovsdb-server.log-20151030
ovs-vswitchd.log
ovs-vswitchd.log-20151103
vm-monitor.log
vm-monitor.log-20151030

in a file: exclude all line starting with '#'

[root@server1 me]# more /etc/vsftpd/vsftpd.conf | grep "#" -v
anonymous_enable=YES
local_enable=YES
write_enable=YES
local_umask=022
dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
xferlog_std_format=YES
listen=NO
listen_ipv6=YES

pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=YES

Exclude '#' and empty line:

jlk@ubuntu:~/open-nti$ more ./docker/telegraf/telegraf.conf | grep "#" -v | grep -v "^[[:space:]]*$"
[global_tags]
[agent]
interval = "10s"
round_interval = true
metric_batch_size = 1000
metric_buffer_limit = 10000
collection_jitter = "0s"
flush_interval = "10s"
flush_jitter = "0s"
debug = false
quiet = false
hostname = ""
omit_hostname = false
[[outputs.influxdb]]
precision = "s"
retention_policy = "default"
write_consistency = "any"
timeout = "5s"
[[inputs.statsd]]
service_address = ":8125"
delete_gauges = true
delete_counters = false
delete_sets = false
delete_timings = true
percentiles = [90]
convert_names = true
allowed_pending_messages = 10000
percentile_limit = 1000
udp_packet_size = 1500