Unix

Both the 'more' and the 'cat' commands will list the contents of one or more files. In that case, the main difference between the two commands is that 'more' is a 'pager' program, meaning that it stops at the end of every page and waits for the user. The 'cat' command will list everything in the file without stopping.

One other thing that 'cat' does that 'more' does not is to concatenate (add/merge) files together. 'more' is not designed to do that.

Lastly, some versions of 'more' can traverse a file forwards and backwards and have simple searching capabilities, which 'cat' does not.

There is no one "current Linux operating system" due to the fact that Linux is developed and distributed in various forms by many different individuals and corporations. The current version of Linux depends on which of these "distributions" you are interested in installing.

For example, a popular distribution of Linux tailored for use as a Desktop system is Ubuntu (www.ubuntu.com), which is distributed by the company Canonical. The current release of Ubuntu is 8.04, which was released in April this year.

There are literally hundreds of distributions freely available online, but other distributions which are of note in the desktop arena include Fedora (www.fedoraproject.org), openSUSE (www.opensuse.org) and Debian (www.debian.org), each of which have their own advantages and disadvantages. Each distribution has its own release schedule, but you can find out what the current version is (and download it) from the official websites.

Windows XP is a proprietary operating system from Microsoft while Solaris is a highly scalable UNIX operating system from Sun Microsystems. Solaris runs on SPARC-based and x86-based hardware. Although Solaris was originally developed as proprietary software most of it is now open source and can be downloaded for free.

-It's super secure

-It's fast

-It's stable

-Significantly less risk of getting a virus/trojan

-It's very customizable

-Most Linux distributions don't take much of memory.

fibo()

{

num=${1:-100}

n2=1

n1=0

while n=$(( $n1 + $n2 )); [ $n -le $num ]

do

printf "%d " "$n"

n1=$n2

n2=$n

done

echo

}

## The loop continues until the user enters a valid number

while :

do

printf "Enter a number: "

read number

case $number in

*[!0-9]* | "") printf "\a*** Invalid number ***\n" >&2 ;;

*) break ;;

esac

done

fibo "$number"

When a copy of "su" is not installed in the jail. The "su" command is required to to rin programs as a user other then "root." However since "root" can break out of the jail, it is necessary that you run a programs in the chroot jail as a user other then "root."

There is no way to answer this question in sufficient detail. "Unix" is a term for a variety of operating systems, many of which have only a few features in common. And with a variety of operating systems on the market, there may or may not be differences between them and "Unix" in selected areas.

The single user process is the environment that only 1 user may log into and use the system. Typically this is for the administrator account and is used only in recovery situations. It is vaguely similar to "safe mode" in Windows.

For loop can be used in following Ways:- Syntax: for var in list do commands done where list is basically the list of the values u want to traverse on, consider an example: suppose u want to display ur name 10 times we ca use for loop as: for var in 1 2 3 4 5 6 7 8 9 10 do echo "$name" done OR for var in {1 .. 10} do echo "$name" done OR the best way(analogous to c) for (( i = 0; i <= 10; i++) do echo "$name" done

A "System Call" is used for the purpose of accomplishing a privileged task for a user by the operating system since the user cannot directly get access to the file system, hardware, etc.

The exact methodology is described in any standard Operating Systems textbook and the discussion of how it works is beyond the scope of this web site.

The Software Development Lifecycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application.

What are you refering to?

If you are refering to windows. Just right click in the folder you want to create the directory/file, click "new" then choose what you want to create.

The Linux kernel offers the user a host of operating systems that are free and can be copied and distributed as much as you like. Known genetically as 'Open Source' and, often small group or community maintained, you can freely try out a variety of distributions. All this without having to register to get a licence as you would need to do if using propriety MS Windows.

Shell scripts are interpreted files that contain commands and logic sequences to do things. They are similar to programs in that they contain logic and sequencing, and call other programs to accomplish tasks.

You use shell scripts to automate tasks in Unix, run tasks periodically, create repeatable tasks, etc.

#include<stdio.h>

void main()

{

int num, sum=0, i;

printf("Enter ten numbers: \n");

for(i=0;i<10;i++)

{

scanf("%d",&num);

sum += num;

}

printf("\n The sum of the numbers is %d",sum);

getchar();

}

The kernel The kernel is the hub of the operating system: it allocates time and memory to programs and handles the filestore and communications in response to system calls. The shell The shell acts as an interface between the user and the kernel. When a user logs in, the login program checks the username and password, and then starts another program called the shell.

The AS/400 is a specific piece of hardware manufactured by IBM corporation. It runs its own operating system. Unix is the designation for an Operating System and runs on multiple hardware.

To my knowledge the AS/400 does not run any version of Unix.

echo "Enter a number: "

read num

i=2

res=1

if [ $num -ge 2 ]

then

while [ $i -le $num ]

do

res=`expr $res \* $i`

i=`expr $i + 1`

done

fi

echo "Factorial of $num = $res" v

Unix is unique

No: Linux is a general purpose operating system, and it has a windows system as well.

Yes: Linux looks like a window operating system to the uninitiated.

This is too general a question to be able to answer in a wiki format. Please be more specific.