You right click on a file and choose Compress. How do you select the compression level for algorithms that support different levels? If you can't, what compression level does it use?
View 9 RepliesGiven a gzip compressed file, how do I know what compression level (1-9) was used for it?
View 2 Replies View RelatedI gzip directories very often at work. What I normally do is
tar -zcvf file.tar.gz /path/to/directory
Is there a way to specify the compression level here? I want to use the best compression possible even if it takes more time to compress.
How can I adjust the levels at which the battery is considered to be critically low?ight now it seems this is set at 5 or 10%. I want to make it 20 or 25%This is for Gnome. I am using Lucid x86
View 1 Replies View RelatedI've been able to kludge a kill script which finds the correct pid for the kdeserver (or gnome server) after my system comes up in run level 5 so I can drop back to run level 3 mode. Lots of experimentation showed me that using telinit 3 and telinit 5 would occasionally leave the video memory in a mess and I would have the black screen of death.
I set the security parameter setting to autologin for me since I am the only user of my machine, but I still have to kludge the default setting under sysconfig (the DEFAULT_WM) under Window Manager to pick a certain window manager, so it takes time to manually switch the desktop.
Right now I can leave the gui and drop back to cli, but painful experimenting showed me that killing the X server is a no no. Right now I kill the kde server, which sends the SIGTERM to the X windows manager, which then figures out that it has to shut down.
Questions: Is there a better way of doing this? Apparently openSUSE figures that we have multiple users logging into the gui desktop, so the gui is always kept running and a login window with the desktop manager option forces the user to login in. With autologin, this never happens, but no choice of desktop is possible on the fly.
Can some type of script be set up to painlessly enable this to happen? And what is the best way of bringing either the Gnome or KDE desktop manager down gracefully? I do get lots of error messages as the system attempts to recover and X shuts down. It appears that apparently the single user with autologin is left out in the cold.
I want to install a software called TinyOS which is an operating system designed for wireless sensor embedded networks in my account. The problem is it has instructions to install the software as an administrator since i'm not an admin of the department network i can not able to install. Is there any method to install this software as an user level rather than admin level.
View 3 Replies View Relatedhello everyone, im having a problem when my computer enters in the run level 4 as the default when i start slackware. The strange thing is that it not seems that is a X window problem, it looks like more like a configuration problem in some part of the kde script to initialize the log in, because if i manually start the X service it works fine, i dont know what is the source. Thank you in advance for the help.
View 3 Replies View RelatedI want to know what are the advantages and disadvantages for accessing spi(serial peripheral inerface )from kernel level and user level. like methods of doing it, speed ,memeory utilization etc
View 1 Replies View Related[code]...
you can find a cutout of an output generated by "iwlist s" command for a cell. Does anybody know what Quality, Signal level and Noise level mean? What is the definition of them? I searched for it and could not find good information on it. What do these Extra:*** fields for? What does it show in the example above? How were those values computed?
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Hi Guys,
here is my scenario:
I am running F10 x86_64 with Nvidia Quadro FX 3400.
I installed the drivers and it worked just fine. No errors generated according to Nvidia log files.
However, while in run level 5 when I try to switch to run level 3 by typing "telinit 3" or "init 3" the X server goes down and I get a blank screen. Same thing happens when I try to switch to a different tty session by <ctrl>+<alt>+F2 (or any F key for that matter).
I also noticed that when I shut down my system I can't see any more the screen where services are shutting down and their status ([OK] or [failed]).
Would appreciate your help on solving this issue.
Hey Guys, I'am new here and request your help on this:
After installing emacs and a few dependencies on my RHEL 5, on restarting the system, the keyboard was not able to work. I restarted several times in vein.
However, when I start in single mode, it works perfectly. I have tried looking for a solution from google, but in vein.
Kindly help...
Regards, Andrew
I have a directory that has a another directory inside it. The top directory is rather redundant since it only contains the one other one. Is there a way to delete the top level directory and have the contents simply "move up a level"?
View 6 Replies View RelatedI just upgraded to the 10.04 and everything works just fine as before (except for skype but that really doesn't matters as it has already been 3 years I'm using ubuntu and I managed to get it to work only once, for miracle I believe ^^). The only real issue I have is this: when I start up my laptop, after the log-in, no sound will be heared as the "speaker" volume level in alsamixer is set to 0; if I raise it from the terminal running alsamixer (as I don't know any other alternative) everything plays just fine, but the next time I boot I do have to do it all over again... So, how can I change the default startup level of the "speaker" in alsamixer?
PS: by the way I do have the very same issue with the screen luminosity but the other way round as is always starts at maximum brightness and I can't manage to get it to start at the minimum, as it did before. At least reducing the backlight if far more quick but a couple of times I forget it and the battery lasted something like half an hour
I notice in Nautilus file manager, if I right click on a directory, I can 'compress' that file or directory. clicking this provides options for different compression formats, but how do I know which one to use?Most of my files are data files, ie text. Though I do have photo/image folders and a music folde
View 6 Replies View Relatedi have about 22 gb of music (mp3 & ogg) on my laptop harddrive.i also have an unused sony mp3 player with a 20 gb hard drive.what i want to do is back up the 22gb into a 20 gb space the music does not need to be playable on the sony player...just using it as a back up device.ok...2 issues:1. when i've tried compressing (tar.gz) mp3 files, little to no space is saved, i assume that a mp3 is pretty compressed already.is there another way to compress effectively ? i dont want to reduce bit rates of the individual music tracks.2. i formatted the sony hd using ext4, but this leaves me with only 16 gb usable space. tried fat32 and this left me with about 18gb.
View 6 Replies View RelatedI use mplayer to play my media files. Occasionally I want to take screenshots of media I am playing. I use the -vf screenshot option to take screenshots which generates shotxxxx.png. The issue is that all those png are not compressed and usually large. When dealing with Hi-Def media they are extremely large, each is 4-5 MB in size at the least. Is there a way I can set the option for compression of png images. If I use imagemagick the same files get compressed to like 1.5MB of png file.
View 4 Replies View RelatedI am working on a project where I am dialing out of a modem!! Old stuff, ya, but the modem allows my device send info from remote sites from my datibase through a phone line so that this IT departments dont have to worry my device being a security issue on their networks.
Any way, the modem I'm using isn't incredibly well designed, and when a certain ascii char is read by the modem, it reads it as an EOF indicator. It is also important that the files I send are compressed.
My question is: Does anyone know of a compression format that allows ME to dissallow IT's use of certain ascii chars?
just as an illustration:
Device --------> Modem ---------> Off-site
and the Modem stops talking to the device when a certain char is passed to it.
I have just installed Free Arc utility for compression from : [URL] and it works smoothly but in command Line mode.
Commands:
a add files to archive
c add comment to archive
ch modify archive (recompress, encrypt and so on)
create create new archive
cw write archive comment to file
d delete files from archive
e extract files from archive ignoring pathnames
f freshen archive
j join archives
k lock archive
l list files in archive
lb bare list of files in archive
lt technical archive listing
m move files and dirs to archive
mf move files to archive
r recover archive using recovery record
rr add recovery record to archive
s convert archive to SFX
t test archive integrity
u update files in archive
v verbosely list files in archive
x extract files from archive
Options:
-- stop processing options
-ad --adddir add arcname to extraction path
-aeALGORITHM --encryption=ALGORITHM encryption ALGORITHM (aes, blowfish, serpent, twofish)
-agFMT --autogenerate=FMT autogenerate archive name with FMT
-apDIR --arcpath=DIR base DIR in archive
-baMODE --BrokenArchive=MODE deal with badly broken archive using MODE
-cfgFILE --config=FILE use config FILE (default: arc.ini)
-d --delete delete files & dirs after successful archiving
-df --delfiles delete only files after successful archiving
-diAMOUNT --display=AMOUNT control AMOUNT of information displayed: [hoacmnwrfdtske]*
-dmMETHOD --dirmethod=METHOD compression METHOD for archive directory
-dpDIR --diskpath=DIR base DIR on disk
-dsORDER --sort=ORDER sort files in ORDER
-ed --nodirs don't add empty dirs to archive
-envVAR read default options from environment VAR (default: FREEARC)
-epMODE --ExcludePath=MODE Exclude/expand path MODE
-f --freshen freshen files
-fn --fullnames match with full names
-hpPASSWORD --HeadersPassword=PASSWORD encrypt/decrypt archive headers and data using PASSWORD
-iTYPE --indicator=TYPE select progress indicator TYPE (0/1/2)
-ioff --shutdown shutdown computer when operation completed
-k --lock lock archive
-kb --keepbroken keep broken extracted files
-kfKEYFILE --keyfile=KEYFILE encrypt/decrypt using KEYFILE
-lcN --LimitCompMem=N limit memory usage for compression to N mbytes
-ldN --LimitDecompMem=N limit memory usage for decompression to N mbytes
-mMETHOD --method=METHOD compression METHOD (-m0..-m9, -m1x..-m9x)
-maLEVEL set filetype detection LEVEL (+/-/1..9)
-max maximum compression using external precomp, ecm, .....
some reason it seems like the lowest it goes is ~64kbps (~ implying variable bitrate).So yeah, any thing that'll let me do the compression limbo better? (How low can you go? ) A different program? Unlock bonus stage? What
View 5 Replies View RelatedI have printer whhich work perfectly on ubuntu desktop I shared it into network and trying to print from Mac and I'm getting the following error: "SpliX Compression algorithm 0x0 does not exist" Printer - Samsung SCX-4200
View 1 Replies View RelatedI compressed a directory containing many image files. The directory amounted to 5.3gig. Compressed with TAR using .tgz the compression took a couple minutes at most and compressed down to 4.3 gig. Compressed using .bz2 the compression took about 90 minutes and compressed down to 4.2 gig. Hardly worth the extra time. Do these numbers look normal to you?
View 1 Replies View RelatedI want to rip all my CDs to flac at the lowest compression (space is not an issue) via Banshee. I have tried a few tracks but the seem to be ripped at a higher compression to the ones I have done via sound juicer (set at compression 0)
How do I adjust the flac settings in Banshee to do this? The option to edit the settings is not available for flac? I guess there is a config file somewhere?
I am trying to convert hundreds of BMPs into a single AVI file, without compression. Since every pixel matters in my case, I don't want any kind of compression. It's fine if the output file is extremely large.
I'd like to know if it's possible to achieve this with packages coming with Ubuntu 11.04. I have tried ffmpeg/mencoder, but they either compressed the output file, or the output file is not playable in totem. I am a new user for both tools. there is actually a way to get uncompressed avi from these tools.
"BMP to AVI Sequencer" [URL] does the job perfectly. I successfully converted 180 1080P BMPs into a 1G avi, running at 30 fps. Unfortunately I need a command line tool this time.
Does anybody how to get good compression rates on pdf?
The default gzip somefilename.pdf gives hardly 10% in the pdf. Any ideas anybody ?
Is there any compression software that supports PAQ8 and its variants with a graphical interface for Fedora (i'm using x86_64)? What's the best compression algorithm known to man? Time taken to compress is not a problem, just need to have the best compression available. Is there any program for linux?
View 2 Replies View Relatedhy I can't make a 7z archive with file roller? I have already installed p7zip, p7zip-plugins, and 7za. I don't understand what the problem is. I can make a 7z archive from the command line with no problems. I keep getting this message but it doesn't tell me what the error is. Quote:An error occurred while adding files to the archive.
View 2 Replies View Relatedhow to do Lempel-Ziv-Welch compression using pen and paper for my algorithms and data structures class. Unfortunately we have only a couple of examples in our book of how it is done. I'd like to practice compressing and decompressing text using it, but I need to find a way to check if I'm right doing it right or wrong.
So I'm looking for some preferably free/open source program which can compress and decompress LZW for Windows or GNU/Linux. Programs without binary distributions are fine too.
I�m installing fail2ban to improve the security of a home asterisk server which from time to time becomes the target of some sip account cracker and/or ssh brute force attack.For those not familiar with fail2ban, this utility monitors log files to find matches with user specified expressions to identify the presence of a brute force attack. Then configures iptables rules to block the offending IP.Here�s an example:
Code:
NOTICE[1734] chan_sip.c: Registration from '"613"<sip:613@xx.xxxx.xxx.xxx>' failed for 'yyy.yyy.yyyy.yyy' - No matching peer found
[code].....
I finally got K9copy to work and I'm using it to extract DVDs to my hard drive. I extract a dual layer DVDs it becomes a 5GB DVD. In the settings, I have DVD size as 9GB because I assumed this would not cause any compression. When I use k9copy assistant to change the shrink factor before ripping, I can only change the shrink factor of some titles to 1.67 from 2.50. I want the shrink factor to be 1 since this seems to ensure that the output of the file is the same size as the title on the dvd. I want the copied DVD to be the same size as the original. I have no problem with hard drive space since I have 6 terrabytes of free space.
View 6 Replies View RelatedI'm head engineer for a community radio station. One of our compressors has recently died and I want to replace it with software compression on our streaming machine. I've been looking at VST/LADSPA/JOST etc and I've got nothing but confused. Hence I'm coming here looking for help.
My spec is this. We need a system to run a compressor and EQ, probably a graphic and a parametric. The compressor needs to be multiband and have proper control of the compression curve. A way of configuring it without too much command line work would be an advantage. All needs to run on an Ubuntu server with not massive overhead as it's not exactly the latest hardware. I suspect it would be possible to run WINE for windows requiring VSTs if needed.
I was hoping some of you good people might be able to point me in the direction of a suitable host and plugins to achieve the effect described.