- What is Linux?
- How do you change permissions under Linux?
- What, if anything, is wrong with each of the following commands? a) ls -l-s b) cat file1, file2 c) ls – s Factdir
- What is GUI?
- Explain virtual desktop.
- Write a command that will display all .txt files, including its individual permission.
- Describe the root account.
- What is Linux Kernel?
- How do you terminate an ongoing process?
- Write a command that will do the following: -look for all files in the current and subsequent directories with an extension c,v -strip the,v from the result (you can use sed command) -use the result and use a grep command to search for all occurrences of the word ORANGE in the files.
- What are filenames that are preceded by a dot?
- What is the pwd command?
- What is the importance of the GNU project?
- How do you insert comments in the command line prompt?
- What are the contents in /usr/local?
- Does the Ctrl+Alt+Del key combination work on Linux?
- What is the maximum length for a filename under Linux?
- What are symbolic links?
- What is the basic difference between BASH and DOS?
- What is typical size for a swap partition under a Linux system?
- What could possibly be the problem when a command that was issued gave a different result from the last time it was used?
- How can you find out how much memory Linux is using?
- What are hard links?
- How do you execute more than one command or program from a single command line entry?
- Does it help for a Linux system to have multiple desktop environments installed?
- How do you share a program across different virtual desktops under Linux?
- What is grep command?
- How do you refer to the parallel port where devices such as printers are connected?
- How do you access partitions under Linux?
- How does case sensitivity affect the way you use commands?
- What are the basic components of Linux?
- What is BASH?
- What is redirection?
- What are the kinds of permissions under Linux?
- In Linux, what names are assigned to the different serial ports?
- What is the difference between UNIX and LINUX?
- What is the advantage of open source?
- How do you switch from one desktop environment to another, such as switching from KDE to Gnome?
- Is it possible to use shortcut for a long pathname?
- What are daemons?
- What is a swap space?
- Write a command that will look for files with an extension “c”, and has the occurrence of the string “apple” in it.
- What are the different modes when using vi editor?
- How do you open a command prompt when issuing a command?
- Are drives such as harddrive and floppy drives represented with drive letters?
- What does a nameless (empty) directory represent?
- What is LILO?
- What is command grouping and how does it work?
- What are environmental variables?
- What is CLI?
grep a search command that makes use of pattern-based searching. It makes use of options and parameters that is specified along the command line and applies this pattern into searching the required file output.
Linux assigns numbers at the end of the drive identifier. For example, if the first IDE hard drive had three primary partitions, they would be named/numbered, /dev/hda1, /dev/hda2 and /dev/hda3.
Just like any other typical operating system, Linux has all of these components: kernel, shells and GUIs, system utilities, and application program. What makes Linux advantageous over other operating system is that every aspect comes with additional features and all codes for these are downloadable for free.
Redirection is the process of directing data from one output to another. It can also be used to direct an output as an input to another process.
Serial ports are identified as /dev/ttyS0 to /dev/ttyS7. These are the equivalent names of COM1 to COM8 in Windows.
Open source allows you to distribute your software, including source codes freely to anyone who is interested. People would then be able to add features and even debug and correct errors that are in the source code. They can even make it run better, and then redistribute these enhanced source code freely again. This eventually benefits everyone in the community.
Yes, there is. A feature known as filename expansion allows you do this using the TAB key. For example, if you have a path named /home/iceman/assignments directory, you would type as follows: /ho[tab]/ice[tab]/assi[tab] . This, however, assumes that the path is unique, and that the shell you’re using supports this feature.
Assuming you are the system administrator or the owner of a file or directory, you can grant permission using the chmod command. Use + symbol to add permission or – symbol to deny permission, along with any of the following letters: u (user), g (group), o (others), a (all), r (read), w (write) and x (execute). For example the command chmod go+rw FILE1.TXT grants read and write access to the file FILE1.TXT, which is assigned to groups and others.
A swap space is a certain amount of space used by Linux to temporarily hold some programs that are running concurrently. This happens when RAM does not have enough memory to hold all programs that are executing.