Can anyone direct me to a resource that explains scripting in simple terms?
I have visited many sites and browsed this forum and have yet to find simple explanations. (8 Replies)
I have written some scripts that do a few admin tasks on 23 servers I manage.
Usually I execute these scripts from one server by running ssh commands remotley, i.e.
ssh root@server2 shellscript, ssh root@server2 shellscript & so on..
It works fine but I want to improve this by writing a... (3 Replies)
from CLI pressing Tab and character like a shows result of the commands starting with a,
can i use this in a script too and post the results to a file?
thanks (1 Reply)
can you help me to create a phone book with add, delete, modify with first name, last name, middle name, phone no(multiple ph no), address, email address, notes or comments to store about the contact and groups that hold for the contact..
i am new to this linux environment. please guide me.
... (1 Reply)
I'm trying to write a script that in the end will from one central location hop to a bunch of servers and then run a series of ping tests. The thing is, the list of devices that needs to be pinged is going to be different for each server. So what I want to do is be able to do is read through the... (0 Replies)
Hi all!
I am trying to write a script that will check if a certain directory is available at several different nodes and then do stuff in it .....
On the beginning of the script I give as a variable the directory and the number of the nodes and then I loop like this:
for... (3 Replies)
Hello All,
I am trying to run some simulations through SSH from my mac on our university SOLARIS system. My problem is that whenever I want to execute a command I get an error which says "Invalid argument".
Maybe I should explain more what I want to do and what I did.
Firstly I installed a... (10 Replies)
I am connecting to a device using telnet, I want my script to perform certain commands : ie- show device , show inventory..etc and write the output it sees from the terminal to a file.
this is what I have got :
#!/usr/bin/expect --
set running 1
spawn telnet <ip address>
expect ... (1 Reply)
I wish to create an executable bash script that will run the following commands as root, that is, using sudo su
iptables-save | awk '/^
/ { print $1 }
/^:+ / { print $1 " ACCEPT" ; }
/COMMIT/ { print $0; }' | iptables-restoreMy first attempt at bash... (9 Replies)
Hi Good morning all,
I want to create script file with multiple commands.
For ex:
pmrep connect is one of the command to connect to repository.
pmrep objectexport is another command to export objects to a file.
These commands should run sequentially.But when i try to execute this, the first... (4 Replies)
Discussion started by: SekhaReddy
4 Replies
LEARN ABOUT DEBIAN
vzmigrate
vzmigrate(8) Containers vzmigrate(8)NAME
vzmigrate - migrate a container between two OpenVZ servers
SYNOPSIS
vzmigrate [-r|--remove-area yes|no] [--ssh=ssh_options] [--rsync=rsync_options] [--keep-dst] [--online] [-v] destination_address CTID
DESCRIPTION
This utility is used to migrate a container from one (source) Hardware Node (HN) to another (destination) HN. The utility can migrate
either stopped or running container. For a stopped container, simple CT private area transfer is performed (rsync(1) is used for file
transfer). For running containers, migration may be offline (default) or online.
This program uses ssh as a transport layer. You will need to put ssh public key to destination node and be able to connect to node without
entering password.
OPTIONS -r, --remove-area yes | no
Whether to remove a container area on source HN for the successfully migrated container. Default is yes.
--ssh=options
Additional options that will be passed to ssh while establishing connection to destination HN.
--rsync=options
Additional options that will be passed to rsync(8). You may add options like -z to enable data compression if you are migrating
over a slow link.
--keep-dst
Do not clean synced destination container private area in case of some error. It makes sense to use this option on big container
migration to avoid syncing container private area again in case some error (on container stop for example) occurs during first
migration attempt.
--online
Perform online (zero-downtime) migration: during the migration the container hangs for a while and after the migration it continues
working as though nothing has happened.
-v Verbose mode. Causes vzmigrate to print debugging messages about its progress. Multiple -v options increase the verbosity. The
maximum is 3.
EXAMPLES
Migration of CT 101 to 192.168.1.130 with downtime:
vzmigrate 192.168.1.130 101
Online migration of CT 102 to 192.168.1.130:
vzmigrate --online 192.168.1.130 102
EXIT STATUS
0 EXIT_OK
Command completed successfully.
1 EXIT_USAGE
Bad command line options.
2 EXIT_VE_STOPPED
Container is stopped.
4 EXIT_CONNECT
Can't connect to destination (source) HN.
6 EXIT_COPY
Container private area copying/moving failed.
7 EXIT_VE_START
Can't start or restore destination CT.
8 EXIT_VE_STOP
Can't stop or checkpoint source CT.
9 EXIT_EXISTS
Container already exists on destination HN.
10 EXIT_NOTEXIST
Container does not exists on source HN.
12 EXIT_IP_INUSE
You attempt to migrate CT which IP address(es) are already in use on the destination node.
13 EXIT_QUOTA
Operation with CT quota failed.
SEE ALSO rsync(1).
COPYRIGHT
Copyright (C) 2001-2010, Parallels, Inc. Licensed under GNU GPL.
OpenVZ 28 Jun 2011 vzmigrate(8)