03-04-2012
I would suggest you make your own experience on the subject:
Create a directory add files in it (5-6 Mb. 10-20 files...) try to archive it using tar, then try to restore, then try to restore elsewhere (create another directory you can use for that...).
What did you manage? How?
There is a good reason why I ask you to create a test directory with a given size (perhaps you could use 10MB...). Depending of the OS you are on, classic issues where linked to backup software or tar usage e.g. inexistent tape devices...
After experimenting try to see if you can solve you request, if not explain why (what is not working the way you desire...) and we will try to assist you from there by giving perhaps new clues or correct your command line...
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Can I extract files from an archive file (tar), where the filename includes the full directory path, to a different directory?
For example the archive files may have a filename of
/SrcFiles/XXX/filename.dat
and I want to extract it to /SrcFiles/YYY/filename.dat. Since the archive file was... (1 Reply)
Discussion started by: nmalencia
1 Replies
2. Solaris
Dear all
I am in a problem. I have created a master server on which I have install a Solaris 10 OS as well as Oracle 10g with some additional solaris packages. Now I want to create a flash archive of this server and install that flash archive on another server, so that the new server will have... (6 Replies)
Discussion started by: girish.batra
6 Replies
3. Shell Programming and Scripting
Hi
Why is creating an RCS archive in /etc a "good thing"?
Hi
Why is creating an RCS archive in /etc a "good thing"? (2 Replies)
Discussion started by: scofiled83
2 Replies
4. Shell Programming and Scripting
Hi All,
I would like to extract specific file from a zip archive.
I have a zip archive "sample.zip".
sample.zip contains few text files and images... text1.txt, text2.txt, pic.jpg etc...
I need to read specific file "text2.txt" from "sample.zip" WITHOUT EXTRACTING the zip file.
... (4 Replies)
Discussion started by: sridharg
4 Replies
5. Shell Programming and Scripting
Hi there,
I have one huge archive (it's a system image).
I need sometime to create smaller archives with only one or two file from my big archive.
So I'm looking for a command that extracts files from an archive and pipe them to another one.
I tried the following :
tar -xzOf oldarchive.tgz... (5 Replies)
Discussion started by: chebarbudo
5 Replies
6. Shell Programming and Scripting
I have some variables containing for example
m02-npt02-sr40-syn-dv0p01-16x12drw
m02-npt02-sr40-syn-dv0p02-16x12drw
m02-npt02-sr40-dv0p03-syn-16x12drw
I want to extract the dv entry for example
dv0p01
dv0p02
dv0p03
Then I want to convert to a numeric, the p specifies the... (5 Replies)
Discussion started by: kristinu
5 Replies
7. UNIX for Dummies Questions & Answers
Hi guys,
Why is creating an RCS archive in /etc a "good thing"?? (1 Reply)
Discussion started by: lemon_06
1 Replies
8. Shell Programming and Scripting
Help needed (1 Reply)
Discussion started by: Chand Shrestha
1 Replies
9. UNIX for Advanced & Expert Users
Is there a way to create a self extracting archive that works in both linux and windows? And if so how? Everything I have read on google only works in either Linux or Windows but not both. (6 Replies)
Discussion started by: cokedude
6 Replies
lav2wav(1) MJPEG tools manual lav2wav(1)
NAME
lav2wav - Extract the audio out of MJPEG container files to stdout
SYNOPSIS
lav2wav [-s num] [-c num] [-v num] [-I] [-R] [-r samplerate, bitesize, channels] lavfile1 [lavfile2 ... lavfileN]
DESCRIPTION
lav2wav can be used to extract the audio to stdout. This output goes to stdout and can be saved as a wav file or piped to another sound
processing tool that is able to handle the wav format. This can be mp2enc and toolame for mpeg layer 2 audio, or for example lame for mpeg
layer 3 audio.
The input files may be any combination of AVI (.avi), Quicktime (.qt) or editlist files so long as they are all lavtools- readable (e.g.
MJPEG-encoded AVI/Quicktime or DV type 2 AVI).
OPTIONS
lav2wav accepts the following options:
-s num
Start extracting at video frame (num)
-c num
Extract (num) frames of audio
-v num
Verbosity level (0, 1 or 2)
-I Ignore unsupported bitrates/bits per sample
-R If the file does not contain any sound. lav2wav will create silence with 44100kHz Sampelrate, 16 Bit audio bitsize and 2 Chanels
-r sr,bs,ch
If the file does not contain any sound lav2wav will generate silence with the values you supply the samplerate (sr), audio-bitsize
(bs) and channel (ch).
BUGS
The "WAV" file format (technically: RIFF) is really very much less than ideal for a tool intended to be used in pipelines as lav2wav is.
The problem is that the header includes a field specifying the length of the file. This can't be filled in except by seeking back to the
begining and over-writing. If the output is unseekable (e.g. pipe) lav2wav simply writes a large length into the header and leaves it at
that. Most tools like sox(1) or mp2enc(1) either ignore the length field anyway or only give a warning.
The audio length is inacurate calculated when lav2wav generates silence. This happens only if you have NTSC framerate and than it creates
for every hour of video 1.1498sec too less of silence.
AUTHOR
This man page was written by Bernhard Praschinger.
If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is:
mjpeg-users@lists.sourceforge.net
For more info, see our website at
http://mjpeg.sourceforge.net
SEE ALSO
mjpegtools(1), mp2enc(1), sox(1)
MJPEG Linux Square 2 June 2001 lav2wav(1)