Neither one is used or necessary in a Linux system.
Both of these are legacy files and not really needed on current operating systems by microsoft. The autoexec.bat starts programs, and ran batch files. The config.sys loaded drivers and configured them.
/var/log
text file
Linux uses Eset as a security software. It is used to protect files and email. In real time it monitors all of the files and applications on the system.
In simple terms: Linux is an operating system. A virus is a malicious application that infects and attempts to damage or altar system files in a computer/operating system. You can get a virus in Linux, yes, as with any operating system but no Linux itself is not a virus. Just make sure anything you use is from a trusted source.
There is no "the startup file" in Linux; depending on the type of system, there may not be any files at all. The Linux boot process has a number of steps, many of which are optional or have alternative implementations.
System-wide configuration files are usually found in /etc. Personalized configuration files are stored in the user's home directory, in files and subdirectories preceded by a "." in their name.
Because all files contained in it are generated by the kernel at mount time. It contains no permanent files; all changes are lost on system reboot.
The Linux operating system command gunzip does many things. The main thing that gunzip does it compress files so that they are smaller and easier to upload and download.
One common problem that is faced by Linux system administrators is not understanding permissions. Not backing up critical configuration files and not choosing good root passwords are other problems new Linux system administrators may face.
do your own research
Ya Linux is virus free OS, How?? Answer: Linux OS Extracted files and folders are kept hidden which cannot be accessed by viruses. Now what are Viruses?? Viruses are the files which carry the path-name of the WINDOWS FOLDER present in Windows OS where all the functional .(DOT)dll files are stored. Once these .dll files get corrupted then the PC starts behaving like a mad bull. So, these .dll kind (not the same format files) of files are also their in Linux OS but they are kept hidden, as a result the virus path cannot find them. Thus, no damage but still the files stored by the user on a Linux machine get corrupted.