I'm trying lo lock a file (not using the chmod). This is the code I generated, but even locking the file I still can read and write the file from another process. (I'm working on a ubuntu 10.10, kernel 2.6.35-22-generic #35-Ubuntu SMP)
[Code].....
my problem is the terminal:
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/) , are you root?
i wanna use chmod() in linux x86 [debian 3.7.2 x86] but i have some problem in function argv
look at this function:
Code: Select all int chmod(const char *path, mode_t mode);
and mode_t modes:
Code: Select all S_ISUID (04000) set-user-ID (set process effective user ID on
execve(2))
S_ISGID (02000) set-group-ID (set process effective group ID on
execve(2); mandatory locking, as described in
fcntl(2); take a new file's group from parent direcق
tory, as described in chown(2) and mkdir(2))
[code]...
i know there is some problem in ecx and mode_t value/
I accidentally did a 'chmod +x foo' when i meant to do a 'chmod a+r foo'.
-rw-r--r-- 1 casper trad 53 Jul 17 22:41 filegore
-rw-r--r-- 1 casper trad 13 Jul 17 22:41 filelemme
-rw-r--r-- 1 casper trad 24 Jul 17 22:41 nix
[code]....
I have written a query of commands that I made executable with chmod +x, but this is an old version of what I'm writing. I'm in need of a way to determine the Operating System the user is using so that the script will run yum or apt-get on the right OS's.
View 11 Replies View RelatedI have installed php, mysql, and apatche. And i need the /var/www/ folder to be able to be read witten, and acsessed by anything. I have tried chmodding 777. But it still doesnt work.
View 5 Replies View RelatedDoes anyone know of a trick or tool that will show me ther directory?Example:neatcmd.bash /dir1/dir2/file1 /dir1/dir2/file1 permissions are 0640Or does anyone know of a tool or command what would convert, for example rwxr-x--- to 0750 suppose it could be scripted, but I was trying to make sure I did not have to re-invent the wheel if something was already out there.
View 3 Replies View RelatedI had created a file under a directory & set the permissions through chmod command but when I create another file under this directory, I get the default permissions. Is this due to umask or can I set the file permissions through chmod under a directory.
View 5 Replies View RelatedIf I am not the file' owner or root, can I use chmod to change the file permission?
Assume I have group/write access to the file, e.g. 775
What does chmod 000 do?when i create a chmod'd file with the 000 permission what happens?I tried creating a file with 000 permissions, and I was still able to read and write to it. So what what does chmod 000 actually do?
View 6 Replies View RelatedThe software I just bought (Lightroom 2.1) contains instructions to get my serial. I downloaded the sofware on my desktop and installed it. In the terminal, I wrote "chmod +x keagan", pressed enter and wrote "./keagan" and I get this message: No such file or directory. what I am doing wrong? I am working on Mac OS 10.4.
View 6 Replies View Relatedcan chmod make any file executable?
View 4 Replies View Relatedthat works to disallow non-owners from renaming the file, but what I wouldlike to do is disallow EVERYONE ( including the owner of the file ) fromediting, moving, or changing the filename once it is created. the only personwho should be able to make those changes is a special user.
View 13 Replies View RelatedI've got some trouble while trying to install some applications on my linux system. It is said that the files in my /var/www/html/xxx directory, where I put them, is not writeable. The command chmod 777 xxx has been tried to make it work, but the error remains when I opened the applications again.
To be specific, I want to install phpFreeChat on my system, so I put those files in the /var/www/html/freechat directory, cd there and typed chmod 777 data/private, chmod 777 data/public on bash. Here's the result of list -al data:
drwxr-xr-x. 4 root root 4096 Jun 17 15:07 .
drwxr-xr-x. 13 root root 4096 Jun 17 15:22 ..
drwxrwxrwx. 2 root root 4096 Jun 17 15:07 private
drwxrwxrwx. 3 root root 4096 Jun 17 15:07 public
These all seemed all right to me, until I typed http://localhost/freechat in my browser. Here's the result:
phpFreeChat cannot be initialized,
please correct these errors:
/var/www/html/freechat/src/../data/private
is not writeable
[code]....
I want to have two kind of users in a work machine having ubuntu 10.04,
1) He is the admin, have sudo privilages and install, do all types of work, his username is abhilash
2) A user who is normally a IT administrator, who can just install or remove softwares, but cannot access files of abhilash.
I'm trying to do this and my head is going blank, The problem where i'm stuck is, if IT admin can install softwares, then he can become sudo as sudo su, then he can view my files
So here is a small test i did, first with abhilash.
Code:
Now others and group don't have any permissions! But when IT Administrator becomes root, he can see this file
Code:
I was trying to install vmware.bundle file, and found a terminal command that helped me install the program.
su
chmod +x VM*.bundle
./VM*.bundle
I was just curious what the command chmod was for? Just trying to understand the terminal a little better.
here is the most importent part of the file setup.shhere link to pastebin:http://pastebin.com/mwQ1UArHand here the part:
cd
chmod 777 ../bin/panel
cd ../bin/panel
[code]....
I've hit a wall here; I'm attempting to find some way by which to view files and cd into directories on a device mounted read-only. So I need the permissions to read, write, execute (and the same with directories), but chmodding is out of the question because I don't want to alter the drive one iota.
I guess what I could do--what I was thinking of initially--was to dupe the whole drive and then mess with permissions. This wouldn't affect the original (actually I'm working on a duplicate of the original, but I'm treating it as if it were the original) but I was hoping for something that would maintain data integrity. This is a forensic application and not altering the data is very important.
i have two c++ programs, first one captures network packet from eth interface and save it in a file, second one uses this generated file for its purposes, data stream always exists then first program should always be running, although second program cannot read the file while the first program is writing in it, then i need to define a lock which can be checked by both progs before read/write, how is it possible to define this kind of lock in linux?
View 5 Replies View RelatedI have a program that uses both Pthreads and OpenMP. Basically, 2 threads (Thread A and B) are created using Pthreads to do work, and in Thread A, OpenMP is used to parallelize a for loop.If I have a global variable that is accessed by the OpenMP threads and also Thread B, can I use the lock in OpenMP to ensure I have no race conditions?
View 2 Replies View RelatedSo I am new to linux and computing in general:I am installing curphoo ( a yahoo chat client). The README file contains the following text:
Code:
You need a Python 2.4 series interpretter starting with Curphoo 0.4.0.
Starting with 0.4.0, Curphoo uses a purely Python implementation of
[code]....
I need a module that flash Caps-Lock led. Is it possible to use outb() function here for sending data to keyboard via port 0x64 ?
View 2 Replies View RelatedI just downloaded OpenOffice 3.2.1 from the openoffice.org weebsite. I followed the instructions precisely and everytime ended up in the same error message - 'error: can't create transaction lock on /var/lib/rpm/.rpm.lock (Permission denied)'. I am using Fedora 13.
View 2 Replies View RelatedWhen i connect windows server 2003 from ubuntu these error displayed .When i installing the tsclient, by executing these following command from a Terminal window:
sudo apt-get install tsclient
When i run these command the following error displayed.
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
I have a HP Pavilion dv4 that is 4 months old. Yesterday it suddenly seemed to restart then once I logged in it turned off. When I tried to turn it on some of the lights came on and the caps lock and num lock started flashing. Since then I have not been able to get it to work correctly.It once seemed to turn on but died again after the login window.I tried to use my live cd but the same thing happened. It started loading once, but then shut down again. Every other time it stayed dead minus the lights
View 1 Replies View RelatedI recently installed Ubuntu 11.04 on an old Sony Vaio laptop. I was following some of the steps here..[url]
The step "Enable Full DVD Playback(Dual Layer DVD Support)" did not finish correctly doh and now I can't use 'sudo apt-get' for anything or the software center or using the 'Update Manager' does not work.
The update manger says it may be caused by an update not finishing correctly which sounds correct as explained above. The apt-get command gives me back the following....'Could not get lock /var/lib/dpkg/lock resource temporarily unavailable' 'unable to lock administration directory /var/lib/dpkg is another process using it?'
I tried the obvious restart but that hasn't worked.
I have pidgin2.5.2. I want to install pidgin2.6.6.How can I do that?E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
View 1 Replies View RelatedThere is a very strange problem I've been having. When I enable either Caps Lock or Num Lock the media controls on my keyboard cease to work. I have Googled this one to death but found nothing. This problem existed in Xubuntu 9.10 and now still exists in Xubuntu 10.04. The keyboard I use is a Logitech Elite Keyboard. I would love to be able to use the Caps Lock and Num Lock without the worry that I am disabling the media controls
View 4 Replies View RelatedI have just burned the latest CD using infraRecorder, as per the instructions on this site, however when I boot from this CD, it spends about 5 minutes moving the red balls across my screen, then all of the sudden it just freezes, and my caps and scroll lock lights start to blink. I've had a look in the forums already but there's nothing about this happening on Boot of the live CD.
View 6 Replies View RelatedI'm wondering why the num lock doesn't work in Ubuntu anymore? When you press the "num lock" key, you're supposed to be able to input the numbers along with + - * / and decimal point. When I press num lock and try typing numbers, nothing happens.
I've done a google search and this is a well known problem that nobody has fixed. In Windows it's never a problem.
Seems such a shame that the great Ubuntu and Linux are so good for stability and speed, but can't get a simple num lock working.