0
setuid is a unix access rights flag that allow users to run an executable file with the permissions of the executable's owner and to change behavior in directories. These (setuid and setgid) are often used to allow users on a computer to run programs with temporarily elevated privileges in order to perform specific tasks.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
In Linux how can I write a shared library function so that when running in user space it and only it can extend a specific data file owned by root user?
If you do not have write access to the file and you are not the owner, then you cannot write to the file with a program running as some other user. Although, setting the setuid bit on the executable of a custom helper program or daemon might be set up in some fashion to do what you want.
How do you change the executable bit in Linux for a .exe file?
chmod +x is the command to set the executable flag in Linux but, Linux does not use exe files.
How do you reverse every word in a filter with assembly language in Linux 64-bit?
To reverse every word in a filter with assembly language in Linux 64-bit is easy. All you have to do is assemble the language file in an object file.
Can I play games on Linux and what is linux?
Linux is just an OS (Operating system like macOS, android, Windows...). But the different things are that Linux is a bit hard to learn. Linux is used by hackers (Linux is a "hacking machine", a bit like hacking in movies. And yes u can play games on Linux (There is some games that doesn't support Linux.)
Can you download Google Earth onto a 64-bit version of Linux?
Yes. Google offers both 32-bit and 64-bit binaries for Linux on Google Earth's download page.
How do you install Linux on a 64-bit processor?
Installing Linux on a 64-bit processor is no different than installing it on a 32-bit processor. Especially on systems that offer both a 32-bit and 64-bit version, the difference is totally transparent, and the install identical.
What Linux command makes a guess about the content of a file without displaying the content?
The command file will display what the type of the file is, even if it does not have a file extension. For example:user@hostname:~$ file image.pngimage.png: PNG image data, 639 x 480, 8-bit/color RGB, non-interlaceduser@hostname:~$ file picturepicture: JPEG image data, JFIF standard 1.01, comment: "CREATOR: gd-jpeg v1.0 (using IJ"
What is meant by AMD64 in Linux distributions?
It's not just in Linux distributions. AMD64 is the "friendlier" term for the 64-bit x86 architecture (x86_64 or "64-bit Intel" as a lot of people like to call it.) What this means in the context of Linux is that distribution is available for 64-bit PCs. This is akin to Microsoft labeling certain versions of Windows as being "64-bit." It should also be noted Linux came to x86_64 long before Windows did and arguably uses long mode in so many better ways than Windows (Including the fact Linux has far more of a selection of 64-bit software than Windows.).
How can you run an iso file?
You need to use a piece of software capable of understanding an ISO file, or burn the file to a disk. You can use Gizmo for Windows, both the 32- and 64-bit, from here: arainia.com/software/gizmo/download.html. The latest versions of Windows, Linux, and Mac OS will allow you to burn the ISO file to a disk; once you've done so, you can use it as a regular disk. Linux allows an ISO to be mounted directly into the root file system using the "mount" command.
Bit depth does not affect file size?
Actually, Bit depth will affect file size. For example: 1-bit=2kb 4-bit=21kb 24-bit=24kb
Are file permissions considered a bit mask?
a bit mask is the subtracted value that would allow you to obtain the actual file permission. For example, consider that a file permission of 777 gives everyone full permissions You want the default file permission for all files created to be 755 You would then set your umask value to 022 Think about it in binary. File permissions consist of three 3-bit numbers, whose values can range from 000 (decimal 0) to 111(decimal 7) 111 111 111 (full permissions, or, 777) -000 010 010 (subtract bit mask of 022) ------------------- 111 101 101 (actual file permissions 755) your default bit mask on linux is set in either /etc/bashrc or /etc/profile. If you want to set it for a single person, you could do it in your .bashrc or .profile in your home directory.
What does i686 has to do with Linux?
i686 is a designation for an Intel processor architecture, falling under the x86 family. It's a 32-bit architecture. Kernel builds and distributions targeted for the i686 are for 32-bit processors/systems.
