02-11-2009
back up
present dir is /etc/hosts and i put the cmd tar -cvf /dev/rmt0 /etc/hosts and after completion of the work it showing r-rw-r 20 block /etc/hosts and after that i took anothere backup and after that i view the file in the drive
tar -tvf /dev/rmt0
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am taking a class all about linux. Where where asked to find the best backup program. We never did agree and are system was set up with scp because some one already knew how to use it and thus the quickest to set up. Great example of legacy support.
However, on my computer i do not have a... (1 Reply)
Discussion started by: macdonto
1 Replies
2. UNIX for Dummies Questions & Answers
hi
i wanna know that is any such type of backup possible in Solaris or AIX that if my system crashes and i had to format the server.........then i shud be able to build the server with that backup only...........if so how
thx (3 Replies)
Discussion started by: girish_shukla
3 Replies
3. UNIX for Dummies Questions & Answers
Dear All
I have an HP 9000/800 UNIX machine , I have also Oracle applications 11i installed on it , we tried to take backup using fbackup command but it skipped some files ( was for database and the database was up and running ) but it took the other database files.
I need to know also ,... (2 Replies)
Discussion started by: hisham.hamdy
2 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I performed backup on tape and I want to append more files to my previous backup on the same backup tape. But before I do that I need to know the backup file size of the first backup I performed so that I know the available size on the backup tape. Can someone help me what command I will use... (0 Replies)
Discussion started by: ayhanne
0 Replies
5. SCO
I am trying to make a full backup of my system using the cpio command. The Tape Unit is a SCSI DDS.
The process started fine but after about 30 minutes, it just stopped and showed the following message:
1755 Signal 31 - Core dumped
Any idea of what is causing this and how to fix it?
... (4 Replies)
Discussion started by: zionpc
4 Replies
6. UNIX for Advanced & Expert Users
hi,
am trying to backup data on cd, cuz i don not have tape device....!!!
i've rewritable CDROM,
am using solaris 10 for x86 on vmware .....
how to make a backup data to a cd_rom againist to tape ?
# ufsdump 0f cd_rom (1 Reply)
Discussion started by: sasame
1 Replies
7. UNIX for Advanced & Expert Users
I am trying to backup my .bash_history and I want to keep every version of the backup. I am thinking to put one of these in my crontab.
0 0 * * 0,3 cat .bash_history > boo
0 0 * * 0,3 cp .bash_history boo
I would like the backups to be called boo1, boo2, boo3, etc. I would like to keep... (7 Replies)
Discussion started by: cokedude
7 Replies
8. Shell Programming and Scripting
Hi Everyone,
we are running rsync with --backup mode, Are there any rsync options to remove backup folders on successful deployment?
Thanks in adv. (0 Replies)
Discussion started by: MVEERA
0 Replies
9. Shell Programming and Scripting
HI all, im new to shell scripting. need your guidence for my script. i wrote one script and is attached here
Im explaining the requirement of script.
AIM: Shell script to run automatically as per scheduled and backup few network devices configurations. Script will contain a set of commands... (4 Replies)
Discussion started by: saichand1985
4 Replies
DD(1) General Commands Manual DD(1)
NAME
dd - convert and copy a file
SYNOPSIS
dd [option=value] ...
DESCRIPTION
Dd copies the specified input file to the specified output with possible conversions. The standard input and output are used by default.
The input and output block size may be specified to take advantage of raw physical I/O.
option values
if= input file name; standard input is default
of= output file name; standard output is default
ibs=n input block size n bytes (default 512)
obs=n output block size (default 512)
bs=n set both input and output block size, superseding ibs and obs; also, if no conversion is specified, it is particularly effi-
cient since no copy need be done
cbs=n conversion buffer size
skip=n skip n input records before starting copy
files=n copy n files from (tape) input
seek=n seek n records from beginning of output file before copying
count=n copy only n input records
conv=ascii convert EBCDIC to ASCII
ebcdic convert ASCII to EBCDIC
ibm slightly different map of ASCII to EBCDIC
lcase map alphabetics to lower case
ucase map alphabetics to upper case
swab swap every pair of bytes
noerror do not stop processing on an error
sync pad every input record to ibs
... , ... several comma-separated conversions
Where sizes are specified, a number of bytes is expected. A number may end with k, b or w to specify multiplication by 1024, 512, or 2
respectively; a pair of numbers may be separated by x to indicate a product.
Cbs is used only if ascii or ebcdic conversion is specified. In the former case cbs characters are placed into the conversion buffer, con-
verted to ASCII, and trailing blanks trimmed and new-line added before sending the line to the output. In the latter case ASCII characters
are read into the conversion buffer, converted to EBCDIC, and blanks added to make up an output record of size cbs.
After completion, dd reports the number of whole and partial input and output blocks.
For example, to read an EBCDIC tape blocked ten 80-byte EBCDIC card images per record into the ASCII file x:
dd if=/dev/rmt0 of=x ibs=800 cbs=80 conv=ascii,lcase
Note the use of raw magtape. Dd is especially suited to I/O on the raw physical devices because it allows reading and writing in arbitrary
record sizes.
To skip over a file before copying from magnetic tape do (dd of=/dev/null; dd of=x) </dev/rmt0
SEE ALSO
cp(1), tr(1)
DIAGNOSTICS
f+p records in(out): numbers of full and partial records read(written)
BUGS
The ASCII/EBCDIC conversion tables are taken from the 256 character standard in the CACM Nov, 1968. The `ibm' conversion, while less
blessed as a standard, corresponds better to certain IBM print train conventions. There is no universal solution.
Newlines are inserted only on conversion to ASCII; padding is done only on conversion to EBCDIC. These should be separate options.
DD(1)