Writing a bash script

s_b · 10-08-2008, 05:12 AM

hi

I need to write a bash script that prints the values of the following data of
Example
My username : dalux
My homedirectory : /home/dalux
My hostname : localhost. localdomain
My current dir. : /home/dalux/courses
My shell : /bin/bash
My search path : /usr/lib/qt-3.3/bin:/usr/kerberos/bin:/usr/local/bin

And all the data to the right of the colon shall be read read from the enviroment of my Linux box.

I have no idea how to do this. Can anyone help me? I need a complete explanation.

Thanks

TwinReverb · 10-08-2008, 05:26 AM

Quote:

Originally Posted by s_b

hi

I need to write a bash script that prints the values of the following data of
Example
My username : dalux
My homedirectory : /home/dalux
My hostname : localhost. localdomain
My current dir. : /home/dalux/courses
My shell : /bin/bash
My search path : /usr/lib/qt-3.3/bin:/usr/kerberos/bin:/usr/local/bin

And all the data to the right of the colon shall be read read from the enviroment of my Linux box.

I have no idea how to do this. Can anyone help me? I need a complete explanation.

Thanks

Code:

#!/bin/bash
# This program is designed to tell you what user you are currently:
whoami
# I'm assuming you only want to see what your /home area ("~") is:
# This should print the long-line, human readable version of your home:
ls -ldh ~
# This shows you your host name by reading the file that contains it:
cat /etc/HOSTNAME
# This shows your "present working directory", i.e. "where am i?"
pwd
# First, the stuff in the `` tells you what shell you are in
# Second, since you wanted it with the path, i used "which" for that.
# The "which" command shows you the full path of shell commands:
which `echo $0`
# This prints the environment variable $PATH, which is your command path.
echo $PATH

H_TeXMeX_H · 10-08-2008, 05:31 AM

I have a gut feeling this is homework, so forum rules say we should not solve it for you. Indeed it wouldn't be fair. But this is such a simple homework assignment, surely any basic bash tutorial will have the answers in the first few pages, try:
http://tldp.org/LDP/abs/html/
and probably this will help too:
http://rute.2038bug.com/index.html.gz

colucix · 10-08-2008, 05:59 AM

Quote:

Originally Posted by s_b

And all the data to the right of the colon shall be read read from the enviroment of my Linux box.

I think this is the relevant part of your homework: you have to become familiar with environment variables. The command set gives you them all. Anyway, as H_TeXMeX_H pointed out a good tutorial should give all the answers, as well as your course notes and your teacher. Try to search the answers deep inside this chapter of the Advanced Bash Scripting Guide.

H_TeXMeX_H · 10-08-2008, 08:07 AM

Yes, I guess that's the easiest solution, just type in 'set' (no quote) into the terminal, you should be able to figure out the rest on your own.

linuxer8786 · 10-08-2008, 08:46 AM

Quote:

Originally Posted by s_b

hi

I need to write a bash script that prints the values of the following data of
Example
My username : dalux
My homedirectory : /home/dalux
My hostname : localhost. localdomain
My current dir. : /home/dalux/courses
My shell : /bin/bash
My search path : /usr/lib/qt-3.3/bin:/usr/kerberos/bin:/usr/local/bin

And all the data to the right of the colon shall be read read from the enviroment of my Linux box.

I have no idea how to do this. Can anyone help me? I need a complete explanation.

Thanks

I think you should complte your homework by yourself, Mr Google is enough for you.
you could get good guide in here:
http://www.freeos.com/guides/lsst/

s_b · 10-08-2008, 12:08 PM

It WAS my homework but I failed, and now I just wanted to know how to do proceed.

colucix · 10-08-2008, 12:32 PM

You have received some directions in this thread. Hope you found them useful.