nixCraft

Hello folks,

I am a beginner and this is the first time I have started learning how to deal with Unix based operating system and shell programming, I have a doubt as to how to write a pretty simple shell program, it is very simple for someone who knows shell programming and isn't that simple for the one who doesn't know much about it.

I hope some of the members here help me with either providing references or providing me hints as to how to write the code.

Here is the question:

Write a shell script (bash or sh) that prints out the following lines/information:

1. Name: "Your name"
2. Hostname: "The computer's hostname"
3. Host IP: "The computer's IP number"
4. Default Gateway: "The computer's default gateway"
5. OS Version: "Whatever information on the OS version you can get programaticly"
6. Memory: "The amount of physical memory (not disk) the system has"
7. CPU Speed: "The CPU speed (in Hz not mip the system thinks it has"
8. Disk space: "The amount of agregate physical disk the system has"
9. A list of shells supported on the system for login (One per line)
10. A blank line (or two)
11. The shell script

FWIW, and this may not apply to you but, homework assignments usually aren't given to make you Bash your head against the wall so to speak but to practice things you learnt, so if this is one of those assignments you might want to read back what's been talked about. You could start by reading some tutorials and walkthroughs like BASH Programming - Introduction HOW-TO, http://www.tldp.org/LDP/Bash-Beginne...tml/index.html and the Linux Shell Scripting Tutorial - A Beginner's handbook. Once you've read that you could try looking at some scripts here: Bash Shell Scripting Directory For Linux / UNIX and see if you can understand what they're doing.

yup, follow all those guides provided by unSpawn.

There is a sample script below in form of functions:
BASH Shell script Common functions library, it includes lots of day-today-life subroutine

__________________
Vivek | My personal blog
Linux Evangelist
Play hard stay cool

Nice examples. BTW, in getDiskDrives() it's missing the GNU/Linux part:
t=($(awk '/[hs]d[a-z]$/ {print $4}' /proc/partition)
c="${#t[@]}"
t="${t[*]}"