I 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.
Given a gzip compressed file, how do I know what compression level (1-9) was used for it?
View 2 Replies View RelatedYou 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 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 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 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 have a script which periodically backs up a directory using the command "tar -czvf [name] [directory]" but my problem is that the script has recently been putting a lot of stress on the server (Minecraft SMP) and tends to lag players as it backs up, which recently has been taking nearly 5 minutes.So I need to know if there's a way to control the GZip compression rate at the same time that it archives and backs up the files?I understand that I can first tar the files and then GZip them separately with a different compression rate afterwards, but this would not work because it names the files with the current server time, which sometimes changes in between commands.
View 1 Replies View RelatedI am trying to install a PCIe card for data compression in Linux ubuntu 9.10(karmic Koala). As you can see in the following code although I have the root access I can not get permission to install the device driver.As I have the root access I suppose to get access to install the driver. I checked around and got the procedure from a web siteEnabling root access in unbuntuBasically in almost all linux machines we will be havingroot access for login.but in ubuntu by default that option was not enabled.If u want to have root login in ubuntu then u have to do some changes in ur Ubuntu machinesSteps to follow1.First enter into ubuntu as your user login.2.Then open the terminal and type the command sudo -s,it will ask for root access and type the password.3.Then type passwd root it will ask for new password4.Open terminal and go to the path /etc/gdm/5.Open gdm.conf6.search for AllowRoot=false7.and then change AllowRoot=true8.now restart ur machine9.now u can enjoy with root accessThe funny part is when I search for the file which is gdm.conf in the prescribed location, I can not find it.
Code:
root@faisal-desktop:/home/faisal/Desktop# cd AHA/
root@faisal-desktop:/home/faisal/Desktop/AHA# ls
[code]....
I'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 RelatedHow 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 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 RelatedI sometimes get confused by the varying command line options I need to run common Unix archiving and compression software (e.g. gzip, bzip2, zip, tar).
Is there a program out there that can just Do What I Mean for common cases? For example:
[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?
[code]...
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 am wondering if anyone knows how to enable NTFS compression using Paragon NTFS 8.1 Enterprise?
The Professional version comes with a utility mkntfs which allows you to set compression as default for all files, but the Enterprise version is apparently meant to be 'fully featured' and support compression, so how do I enable compression on a drive/folder/file?
I 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 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, .....
I was trying to learn more about xorg configuration and came through an exercise that should be run at run level 3. So, I wrote init 3 in the command line then the x server stopped and the system was trying to enter run level 3 but then it hangs and nothing happens. At that time I was connected to the system via putty and wrote the command init 5 and the x server started again normally. I tried init 3 again and had the same thing.
View 4 Replies View Relatedi do wish to read study learn from linux world. sites to refer always for command, practice,tutorials etc.say like replication data os level from 1 pc to other pc,without using any outside linux software, only os level, linux to linux, linux to windows/macchannel bonding, using 2 network ethernet card, double the speed of network card and failover netowkr card alsosyncronize data 1pc to 2pc
View 1 Replies View Related am using a desktop computer which is having 1 gb ram,ge-force 2 but when I goto set the desktop effect to a 3d level the computer gets hanged/stops responding,is there any way to fic this problem and ya i am using fedora 12.
VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03).
If this is documented (I'm sure it is) I can't find it.Being a really OLD UNIX user (35-tty days) I don't like GUI and leave it at RL 3. The background is wallpapered with an undesired image. can't remember where to get rid of it. I have done it B4 but I've slept since then
View 5 Replies View RelatedWell I have been using linux for sometime, and have kept strong passwords for every user account. But recently I noticed when we boot into run level 1, it does not ask for any password.This means that anyone can turn on my computer in my absence, on grub menu press a, then 1 to append 1 to the kernel arguments, which will make my system boot in run level 1.It won't ask for any password. Once in run level 1, the intruder can easily access my files, copy them, change their permissions, change even the root password.
Now how can I make my system more secure? Is there a way to get detailed info of each log in session, like which user, which run level, for how long and things like that?
What application is more "low level" - apt or aptitude?
View 14 Replies View RelatedDoes 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 RelatedI 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 Related