autodns-dhcp_ddns(1) General Commands Manual autodns-dhcp_ddns(1)NAME
autodns-dhcp_ddns - the script that updates the dns and settles the dhcp stuff
SYNOPSIS
INTERNAL
DESCRIPTION
autodns-dhcp_ddns is the script that updates the dns data, it also settles the information given dinamically on the dhcp server configura-
tion, so that things become static instead of dynamic. It does this by creating the update instructions for nsupdate and BIND, and writing
host entries with the name, MAC and IP addresses on the dhcp configuration. This script is called from autodns-dhcp_cron, and should not be
called directly, if the user wants to force any updates, he should call autodns-dhcp_cron and not autodns-dhcp_ddns directly.
FILES
/etc/autodns-dhcp.conf
/usr/share/doc/autodns-dhcp/*
/var/lib/autodns-dhcp/*
autodns-dhcp_ddns(1)
Check Out this Related Man Page
ESSIDSCAN(8) Commands ESSIDSCAN(8)NAME
essidscan - scan for ESSID corresponding to available WLAN access points
SYNOPSIS
In /etc/network/interfaces:
mapping <interface> script essidscan
DESCRIPTION
The essidscan utility is used to tell the ifup and ifdown utilities about the current SSID of the WLAN currently being accessed. It can be
used to map the SSID name to an iface stanza.
CONFIGURATION
A sample /etc/network/interfaces may look like this:
mapping hotplug
script /etc/network/essidscan
map SSIDONE wlan-work
map SSIDTWO wlan-work
map HOME
iface wlan-work inet dhcp
wireless-key 1234-5678-9ABC-DEF0-1234-5678-9A
wireless-keymode restricted
iface HOME inet static
address 192.168.2.4
netmask 255.255.255.0
gateway 192.168.2.1
wireless-essid HOME
wireless-key s:somepassword
wireless-keymode open
iface DEFAULT inet dhcp
FILES
/etc/network/interfaces
the interfaces definition file
/etc/network/run/ifstate
a record of the current state of the interfaces, managed by ifup and ifdown
SEE ALSO interfaces(5)ifscheme(8)ifup(8)ifdown(8)AUTHORS
Tor Slettnes <tor@slett.net>
ESSIDSCAN(8)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)