i want to know, what is vpath mechanism in makefile?i did google search this,but i couldn't understand it as i am beginner in linux os. or either give me few simple links related to vpath mechanism.
View 1 Replies
I want to make a file called file roller for Ubuntu 9.10. The folder has a file called install.sh and some others that are make.
I figure first I need to make a file and then run install.sh to install. But I don't know how to do this.
I have a general question and decided to post it here. Hopefully, I have picked a correct category. The thing I have been trying to figure out is the syn-cache mechanism. I know that it used to be utilized as a method to mitigate the impact of (D)DoS attacks. I would like to know what happened with it? Is it still added to the Linux systems? Perhaps I am missing something, and cannot find the correct man page about it. Is it the thing, that it is only for NetBSD project?
View 5 Replies View RelatedWhen using RPM/YUM or any other package manager, is the old version of that program deleted and then follow by an installation of the latest update? example:
nautilus-2.16.2-7.el5 update to nautilus-2.91.6-3.el5
will nautilus-2.16.2-7.el5 be uninstalled and then follow by an installation of nautilus-2.91.6-3.el5?
I am working on tracing the signal handling mechanism in linux kernel internallly. For that, i build the kernel. Now, i want to trace the signal handling mechanism in the old kernel. I got to about SYSLOG and PRINTK for this. But, how to use these tools exactly in tracing the handling of signals internally ?. Is, there any tool similar to backtrace to do that?. How the call flow is done internally ?
View 1 Replies View RelatedI have 4 Linux machines with cluster.My target is to find all kind of IP address (xxx.xxx.xxx.xxx) in every file in the linux system remark: need to scan each file in the linux system and verify if the file include IP address if yes need to print the IP as the following
more /etc/inet/file.example1
182.23.2.4
255.255.0.0
10.10.1.1
When I try to compile some Java code on Ubuntu 10.10 (kernel 2.6+) using make and a Makefile.
I get an error indicating that the make utility cannot execute the java compile command (javac).
The error reads: /bin/bash: line 6: .: /usr/local/jdk1.5.0_18/bin/javac: cannot execute binary file
I am executing make as root. I have enabled permissions on all directories in the path /usr/local/jdk1.5.0_18/bin/javac and on javac itself.
I get this error whether using a jdk installed via ubuntu apt-get, or whether I install the jdk myself. And I get it using either Java 1.5 or 1.6
My machine has an 80386 processor. I notice the make utility is built for i686-pc-linux-gnu
However, I can manually compile using javac.
I can compile calling javac from within a bash script.
I can compile using the java compiler gcj from the command line: gcj --main=HelloWorld HelloWorld.java -o HelloWorld.exe
But I cannot compile java code from the makefile. Any reasons why I might be getting this error?
I'm currently stuck at 6.13 GMP-5.0.0 of the LFS installation. After running make, I receive the following:
error while loading shared libraries: libbfd-2.20.so: cannot open shared object file: No such file or directory
make[2]: *** [libmpn.la] Error 127
make[2]: Leaving directory `/sources/gmp-5.0.0/mpn'
[code]....
I wonder how to arithmetic operation of our data file using any script program/command (like sed, cut,awk)for example my data.file is:
45 65 42
12 23 61
43 34 21
I want to multiply first column with 2 and add second column with 3 then it become
90 68 42
24 26 61
86 37 21
i am having a problem concern zlib installation.i tried configure file successfully but make file displayed some errors.that usr/linux/limits.h not found.so i found that i have to install glibc-headers-devel...but there is no such a kind of package in ubuntu repository?/????/some people saying that libc6-devel is equal to them!
View 1 Replies View Relatedcan someone please confirm or correct my understanding of automatic upgrades in F14:as far as i currently understand the automatic update mechanism in F14 it works the following way:
1.) PackageKit (packagekitd) periodically checks for updates using YUM as it's backend and displays a nice icon in the tray to inform the user when upgrades are available.
2.) PackageKit (packagekitd) only runs when a user needs it and terminates afterward. When a interactive Desktop session is running, packagekitd is always running because it's spawned by the session manager.
3.) When using a console only system (without X) or when nobody is logging in on the local graphical console for a longer time i need yum-checkupdates for configuring automatic upgrades (same as done per default in CentOS).
What is the appropriate mechanism for reporting bugs in KDE?
View 4 Replies View RelatedIn what situations we have to use RTTI dynamic_cast mechanism. What is the difference between dynamic_cast and static_cast
First I have searched in net. But I didn't the right one. So, I am posting here.
That was released in October 2008, superseded in March 2009, and the current release is 1.4.3. It also doesn't work together with Python, but that's a more esoteric issue. Both of them are too clever by half, and the combination breaks the library loading mechanism. That's an old issue, with an old fix - though I haven't yet checked my rebuild, so there may be more than one problem.
View 1 Replies View Related i need to find a way to securely authenticate a decryption mechanism of some sort where the authentication is provided remotely without any user-interaction. Right now i have a number of boxes that all inform a central server when they are online. When they do this an OpenVPN connection is set up between them and the server.
However, i have been given the task to ensure that the scripts involved in this process are encrypted by default. This requires some form of self-decryption, which to my mind kind of goes against the whole idea of encryption/authentication in the first place. I need some way to leave decrypted the bare essentials required to boot a box and securely connect to the central server automatically. Then the server would automatically send a key/passphrase and the rest of the files on the box would then be decrypted on the fly.
I have compiled the linux kernel. My bzImage is 1,14 mb big
Anyway. It's only 2 programs i need and it's Python and Busybox. I have compiled python and busybox and put them together in a folder. Busybox is 146 kb and pyton is 4,4 mb.
But how do i make an initrd file of them? Or should a make an initrd file of them?
I get this error when a runt with a compiled busybox to gz format as initrd, and without initrd.
Quote:
VFS: Cannot open root device "sda1" or unknow-block(0,0)
Please append a correct "root=" boot option; here are the available partions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)Pid: 1, comm: swapper Not tainted 2.6.38.3 #1
Do you know how to make an initrd?
I have created a file named as pm under the path /home/ppp/ i.e. /home/ppp/pmTo make it executable, I've used command: chmod a+x /home/ppp/pm while residing in root directory.But while trying to run from root by typing ./pm or within the directory /home/ppp, it was displaying that directory not found.Please help by providing the step by step procedure, so that I would be able to run my file from root or from the directory.
View 3 Replies View RelatedRemember back in the days of MS-DOS, a file could have 4 different attributes: archive, read-only, hidden, system. As you know, MS-DOS didn't have any user rights or privileges. Files had no owner. If you were at the command line, you could do whatever you wanted, you could change or delete any files you wanted to... so long as they weren't read-only. Under MS-DOS, if you had a read-only file and tried to delete it, you would get an error saying "Cannot delete read-only file". There was a simple remedy to this, just turn off the read-onlyness:
Code:
attrib -r hello.txt
The point I'm trying to make here is that even though you had full permissions over the file, you still had to turn off its read-onlyness before you could make a change. Well I'm trying to do something similar in Linux. Under Linux, the root user has full permissions over every file. But I need to make a particular file read-only so that not even the root user can alter it. I have a few programs on my computer that need to be run as root because they do some low-level networking (raw sockets and the like), and these programs alter my "/etc/resolv.conf" file. Well I need to find a way of making my "/etc/resolv.conf" file READ-ONLY, even for the root user. It doesn't seem as though the Linux filesystem provides a means of doing this, reason being that the root user will always be able to alter any file it wants to. I was thinking though... there's some way I could turn my "/etc/resolv.conf" file into a virtual file of some sort, like maybe I could use some sort of mount program to mount the file as read-only... ?
can chmod make any file executable?
View 4 Replies View RelatedHow Do I make a file a executable program ?
View 3 Replies View RelatedI've gone through some online tutorial on how to create a MAKE file and actually I don't have a complete understanding of it specifically, linking the particular compiling program to a library and also creating a share/dynamic library.
View 4 Replies View Relatedin my php page they ask the user to enter some input example like year. i want that input to be transfer into my .sh file and will show its output. how to make .sh file receive data from php and php sent data to .sh file
View 1 Replies View RelatedI have Orace linux .iso's on a memory stick. I could burn them to CD's and install linux from the CDs. However I would rather not waste 5 CDs and just install from the memory stick. How can I do that? How do I make the memory stick bootable? I did try changing the boot options but I could find the right one.
View 8 Replies View RelatedI'm using ubuntu 9.10. I was wondering if it is possible to make a file/directory transparent when it is 'cut', like it is in Windows.
View 14 Replies View RelatedI notice that when you try to Make link to any file or folder form context menu, It just copy the same file size? even when i tried to copy the link to external storage disk..
View 1 Replies View RelatedI have a folder at /home/www/, and the owner is www, which is part of the www-group. I have another user, john, part of the john group. How can I chown /home/www/ to make it writable by both www and john?
View 2 Replies View RelatedAs part of instructions from Slackware Installation site, I am trying to make a boot file from the ISO (10.2VER). The command given: 'dd if=[image file name] of=/dev/fd0'
Tried image file 'bare.i' and also 'pportide.i'
Error from Red Hat OS: "opening 'pportide.i' no such file, directory" Also tried 'C:>RAWRITE bare.i a:' from WinXP command line with negative result.
Slackware help site:
'http://www.slackware.com/install/bootdisk.php'
I have not seen a command w/ 2 = symbols??
Installing to stand-alone desktop, PATA IDE Controllers. (ISO was copied with process: 'image burned to disk').v
How to make a file system like ntfs in linux like RHEL5.0 ?
View 3 Replies View RelatedI have a directory called data. Then I am running a script under the user id 'robot'. robot writes to the data directory and update files inside. The idea is data is open for both me and robot to update.
So I setup the permission and owner group like this
drwxrwxr-x 2 me robot-grp 4096 Jun 11 20:50 data
where both me and robot belongs to the 'robot-grp'. I change the permission and the owner group recursively like the parent directory.
I regularly upload new files into the data directory using rsync. Unfortunately, new files uploaded does not inherit the parent directory's permission as I hope. Instead it looks like this
-rw-r--r-- 1 me users 6 Jun 11 20:50 new-file.txt
When robot tries to update new-file.txt, it fails due to lack of file permission.
I'm not sure if setting umask helps. In anycase the new files does not really follow it.
$ umask -S
u=rwx,g=rx,o=rx
I'm often confounded by Unix file permission. Do I even have a right plan? I'm using Debian lenny.
I'm using andLinux and for whatever reason, emacs seems to think that the file I'm editing has been changed every time I try to edit/save and keeps reprompting me. Very annoying. Is there a way to make emacs stop checking the file on the disk?
View 1 Replies View Related
