Ubuntu :: Compression Excluding Certain Ascii Characters?
Jun 8, 2011
I 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.
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Jul 8, 2011
What command could I use in terminal to delete all ASCII characters? That is, delete a-z, A-Z, 0-9, and all punctuation? I have a file containing Chinese characters, and I want to remove everything else and leave just the Chinese.
I can use grep to leave only the lines that have Chinese in them, but this still leaves a lot of non-Chinese stuff on those lines. Does anyone know how I could actually remove everything that isn't Chinese?
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Feb 20, 2010
Say you wanted to write a bash script for "hello world" but the characters were shifted up or down by one.
How would one go about this?
Example:
Code:
Code:
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Apr 6, 2010
How can I use extended ascii characters, like ALT + 2 + 0 + 0 for instance? I'm using some of those characters for my passwords for online accounts made under MS Windows and it seams I'm unable to use them in Slackware 13. For instance: if I type ALT+2+0+0 in Pidgin there is no character displayed and if I type in the Terminal the same thing, it will replace my shell prompter (sasser@HOSTA:~$) with (arg: 200):
sasser@HOSTA:~$
(arg: 200)
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Mar 8, 2010
How can I filter ASCII quotes( ' ) and double quotes ( " ) so that I can replace them with the UTF-8 equivalent?If I copy text from a Word Document(ASCII), and upload it to a web page with PHP. The Database(UTF-8) will replace these racters with incorrect character(s).I need some function that will replace these characters but I don't know how to differentiate the ASCII quotes and the UTF-8 Quotes without (somehow) converting the string to hex, then preg_replace'ing the hex code for the symbol.
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Apr 26, 2010
Well, I have a web application in Linux server. All my Java codes are there. FYI, whenever user entered non-ASCII characters(e.g. ∞,�,�) in a text field in my web application, and I check the log of my Java code in Linux server, it returns weird characters.
Suppose user entered ∞ in the text field. I should get ∞ in my log too. However, I got weird characters in return.
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Mar 9, 2011
i want to print all ASCII characters kind of like a table, but i really don't have an idea of how to do it, i don't know if there is a built-in method or something to accomplish this, if not
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Jan 16, 2010
Banshee (Version 1.5.2) doesn't seem to support cover art for tracks that include non ascii characters in any way. All manual methods that work with ascii tracks failed (folder.jpg in album folder, copying appropriately named jpg in ~/.cache/album-art, embedding jpg in mp3 metadata). This is really quite a drawback for users who don't have an English-only music collection. Is there any workaround or bugfix that I missed or do I have to go back to Rhythmbox to have non-English cover art?
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Jun 25, 2010
I'm stuck with the problem of amarok refusing to play songs that have any non-ascii characters in the metadata, which is about 1/3 of my collection.A solution to that problem would be ideal, but if there is a good alternative (like amarok 1.x series) I would probably switch.
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Aug 28, 2011
While modifying the definition of my PS1, I saw that "[" and "]" markers should be added to help bash to compute the right display lenght. Many exemples on the web do not use them or even mention them.I searched for a solution to add them automatically, like with sed, but I didn't find any example.Are they still needed and is there a recommandation not to use sed to define PS1?
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Aug 3, 2011
This is weird, and I never noticed before, but now I have an application that is borking on weird things like when /etc/hosts is of one file format or another, and I don't even know the difference between the two (google doesn't tell much either). on CentOS 5.5/5.6 x86_64: a which on the following is an interesting tell:
vi = /bin/vi
vim = /usr/bin/vim
both are actually vim version 7.0.237 but sum differently, and although they are both actually separate executables in the stock installs of CentOS I've been building, on most distros, and older versions of CentOS it seems, vi is usually just a symlink to vim - but again, not in these fresh installs it seems. When I create a file with the 'vi' above, it defaults (usually) to "ASCII text" (but not always) When I create a file with the 'vim' above, it defaults to "ASCII English text" (and causes a particular application I'm working with to bork and barf). It seems the OS is installed by default yielding both file types too, as evidenced by the following:
[Code]...
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Jun 16, 2010
I have my OpenSuse 11.1 box set up with utf-8, however, every time I try to open a file with utf-8 characters with vi it can't handle those characters properly.
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Feb 2, 2010
I would like to take a file looking like...
uid=user1,ou=People,dc=company,dc=com
uid=user2,ou=People,dc=company,dc=com
uid=user3,ou=People,dc=company,dc=com
[Code]...
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Feb 6, 2011
Is there a way of excluding a software package when issuing the 'apt-get dist-upgrade'command? For example the newer 'pm-utils' packs are incompatible with my hardware and my laptop starts to glitch. What I do is I uninstall and replace the package every time I run 'sudo apt-get update && apt-get dist-upgrade'. Which is kind of annoying. I know that you can hide updates from the update manager, but what about the terminal? I'm sure there are codes like "dist-upgrade [except pm-utils]"
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Oct 22, 2010
I have spent the last hour searching for a solution to this, but I can't get it to work. Here is what I am trying to do:
I have directories for different months in one folder. So for example Code: ../folder/Jan/
../folder/Aug/
etc. Some of the folders have a dot in front of the month as so: Code: ../folder/.Sep/
../folder/.Oct/
[Code].....
I am trying to find all the csv files EXCEPT those in a folder that has a dot. For example I want all the csv files in ../folder/Jan/ but I want none in ../folder/.Oct/.
I also want to exclude all the files in the /Aug/ folder that represent days 10-31.
Here is what I have so far: Code: find /some_path/folder/ ( ! -name "Aug[10-31]*.csv" ! -path "/.*/" -name "*.csv" ) | more This command lists all the .csv files except those in the /Aug/ files. So it just ignores the /Aug/ folder completely but lists every other .csv file.
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Jun 10, 2011
I am trying to exclude 2 directories with find and pass it into cpio. I have tried
Code:
find . -depth -path '.evolution' -prune -o -path '.gconf' -prune -o -print|cpio -aov > /media/caca/full$date
./.gconf/apps/evolution/memos/%gconf.xml
./.gconf/apps/evolution/memos
[Code]....
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Sep 12, 2010
I'm trying to compress with zip for linux utility a file
Is need to be done (example):
But I would like that in the zip file there is only one file: source.file instead the whole directory path /usr, /src,... and the file.
I can't move up to the directory /usr/src/ to execute the command.
I must do this from / directory.
If this possible? I Windows systems even if I do the zip C:directory1directory2source.zip C:directory1directory2source.file, it does what I need: a Zip in directory2 with just the file source.file.
I've been looking up the man page for zip, but did not find anything useful, tried, -j, -D with no success.
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Jun 30, 2011
I have a nfs share on my 11.4 workstation at /abcd. I'd like to export everything under /abcd except for one directory /abcd/dontexport
I searched online for such an option but only came across noaccess option which doesn't seem to work.
exportfs says it is an unrecognized option if I run "exportfs -ra"
This is how my /etc/exports looks like:
Code:
/abcd*(rw,wdelay,root_squash,no_subtree_check,anonuid=12345,anongid=6789)
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Jul 29, 2010
Just trying to set up a new backup using tar, but there are a few things I dont want to include. Using --exclude I can exclude sub-directories, but how do I exclude specific files in a subdirectory that are (for instance) executables or have a specific extension?
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Dec 13, 2010
I have to write a script which would search the IP adesseses in a given directory.
Below is my command.
Code:
grep -HwrnI --exclude=*.log '[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}' *|grep -v '/.svn/'
I have to exclude the following from search resluts.
1. Comments
a. Can be starting with /, * or #...
b. Cane be between a line
EX: some text... #comment1
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Feb 27, 2011
I have a Ubuntu 10.10 box which i've developed an IPTables Firewall script and is forwarding my ports correctly. This service also runs Openswan VPN Server with 2 VPN's, which is also working well.
I have come across a small snag with excluding the multiple VPN subnets I have from the NAT on this box.
I have the line in my configuration file:
-A POSTROUTING -o eth1 -s 10.172.1.0/24 -d ! 192.168.5.0/24 -j MASQUERADE
Which when added to IPTables does make the VPN come to life. But I can't seem to get it to add the second subnet. Unfortunately, I can't do a blanket exclusion such as 192.168.0.0/16 because the second VPN is on a Class B subnet address which I cannot change.
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Jun 21, 2011
At present in my server the log folder was filled up and causing memory issue. So I am planning to write a script in such a way that the files which are older than 30 days will be deleted and also need to find the files which were not compressed and need to compress this file. Compression will exclude if the file was created on the same day.
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Jul 12, 2010
I have tripwire 2.4.1 up and running on one of our servers, and I am now in the process of configuring it to exclude some files and/or directories that are known to change periodically between integrity checks.
I did some reading on the subject, and one file that came up was the tw.config file. However, when I did a search for the file, there was no instance of it on the server. My next thought was to modify the tw.pol file, and I did try to list some files to be excluded. However, when I tried to update the policy, I got an error message which indicated the syntax that I entered within the tw.pol file was incorrect.
If the tw.config file does not exist, can I create it, and modify the tw.pol file to indicate where the file is located on the server?
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Jun 30, 2011
I've got the following code and kludge. It's working okay except that there's a directory called "Archive" which I don't need to backup. I've tried various combinations of &&, -a, etc., and I'm kind of at a loss for getting this right.
Here's the code I have so far:
Code:
#!/bin/sh
# backup subdirs as individual tarballs with prepended timestamps and
# move them somewhere else.
# --exclude "/path/to/dir/*" (Doesn't seem to work)
[Code]...
How can I write that line so that I can loop through all of the subdirs, tarring them up, but excluding the "Archive" subdirectory?
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Apr 11, 2011
I am running RHEL 5.4 Server (32-bit) and have my audit.rules file set up per a template that I am required to use. There is one particular rule that audit is auditing the unlink of files. With this set, my log files are filling up very fast, as there is a particular app that constantly touches/ deletes a couple of files, which the unlink is catching. Here is the audit rule:-a always,exit -F arch=b32 -S unlink -S unlinkat -S rename -S renameat -F auid>=500 -F auid!=4294967295 -k deleteI commented out the "-S unlink" and my logging returns to normal (as expected). For right now, I was wondering if there was a way to set this rule up to exclude these couple of files from what auditd is capturing?
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Jan 20, 2010
I want to search file excluding the NFS ...find / -mount -name 'filename' restricts the search only in the root disc partition,but the file can be in other partitions alsoIs there any way to exclude the NFS only.
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Apr 11, 2011
I am running RHEL 5.4 Server (32-bit) and have my audit.rules file set up per a template that I am required to use. There is one particular rule that audit is auditing the unlink of files. With this set, my log files are filling up very fast, as there is a particular app that constantly touches/ deletes a couple of files, which the unlink is catching. Here is the audit rule:-a always,exit -F arch=b32 -S unlink -S unlinkat -S rename -S renameat -F auid>=500 -F auid!=4294967295 -k deleteI commented out the "-S unlink" and my logging returns to normal (as expected). For right now, I was wondering if there was a way to set this rule up to exclude these couple of files from what auditd is capturing?
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Mar 5, 2010
I am running CentOS 5.x and want to yum update, but I do not want to touch the kernel. How can I exclude the kernel update and prevent yum from removing my current kernel?
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Jan 14, 2010
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?
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Nov 1, 2009
I am a squat on advanced Apache work. I would get a basic SSL functionality to work. So URL...works fine and gets me all the login windows I designed. however currently all the images and other extensions like .pdf are also using the https routing.some image referred on that https link e.g. URL...can be displayed using https but not http.I would like to JUST limit https usage to the login window html and ALL other images pdf's not secured html ( one that do not need password ) should use HTTP NOT HTTPS.
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