With the help of ‘grep’ command it is quite easy just to look at the active setting of configuration files, omitting comments.
The following command will display the content of the file ‘somefile.conf’, omitting blank lines and the lines started with “#”:
$ grep ^[^#] somefile.conf
Also, you can pipe the output to a new file:
$ grep ^[^#] somefile.conf > newfile.conf
To make filtering easier, you can add an alias for ‘clean config’:
$ alias cf='grep ^[^#]'
And use it as follows:
$ cf /etc/ntp.conf driftfile /var/lib/ntp/drift restrict default kod nomodify notrap nopeer noquery restrict -6 default kod nomodify notrap nopeer noquery restrict 127.0.0.1 restrict -6::1 server 0.centos.pool.ntp.org server 1.centos.pool.ntp.org server 2.centos.pool.ntp.org includefile /etc/ntp/crypto/pw keys /etc/ntp/keys