Thanks for the reply I appreciate it, I also wasn't sure if this should be in the homework section, I didn't want to clog it up as I want to keep this alive for a week. If the mods wants to move it they can, and some of the questions I am going to ask are pretty basic
Moderator's Comments:
Some administrative notes:
I understand that this is a borderline case and appreciate the consideration. Nevertheless you should have contacted any moderator or admin to get a decision on this. In fact we are here to help you and we appreciate being asked for help because this justifies us bossing around innocent users like i do right now. ;-))
My heartfelt thanks go to Don Cragun for showing so much consideration. I really appreciate this.
In my opinion this thread is better suited to the "Homework and Coursework" board and i am going to transfer it there. Please supplement the missing information from the questionnaire, which is obligatory in this part of the board:
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course)
Now to the threads content itself:
Quote:
Originally Posted by murphy
My program is working fine, with any values I throw at it.
Will output:
The same when the numbers are reversed, I'm happy with that, also I will remember to indent more,ty.
I am not sure if this is in the scope of the question, but i miss some input validation: what will happen in the following cases:
Right now the behavior of your program is not only "unspecified" but also "not determined" and this is generally a bad idea, as the venerable Don Cragun probably knows best of us all.
It is good style to make programs as foolproof as possible, which means: always validate your assumptions. If you get input from users check if it is what you expect it to be. If you allocate temporary space (i.e. by using a tempfile) make sure the file system provides the free space you expect to need. If you want to write a file make sure the privileges the script is run under include write access there - etc., etc., ... True, this makes scripts a lot more complicated (i often end up writing 100 lines for basically executing a single command), but it also will make sure it exits with some defined state.
Always strife to build programs as finite-state machines. They do not always have to carry out their goal, but at least they should respond in a defined way to obstacles. Specifically for your script: it doesn't need to "correct" unintended inputs, but it should react with some defined exit state and/or some error message telling the reason why it can't continue.
Heres some more questions, are the ansers I've given correct? Will they get all the marks?
Quote:
Originally Posted by murphy
b) What is the search path for the shell?
The search path is contained in the C shell “path” variable. Like all C shell variables, it can be referenced by placing a dollar sign in front of the name. The current search path can be printed with % echo $path.
The search path is also a component of the environment which is passed from process to process, independent of the shell.
hmm.... First, I'd like to doubt that you are using or are being tought csh. Using csh is more than antiquated today, it is not POSIXly correct and generally csh Programming Considered Harmful as Tom Christiansen has pointed out already in 1996.
Second, if you indeed use csh: check your answer again, very carefully. UNIX is neither "Unix" nor "unix", you know. ;-))
I have been trying to run a unix script which contains many sql statements.I need to run this script every monday morning. I tried to run on command prompt, it works fine. But while I run it via batch or at command., it returns with library module could not be loaded (libcompat.1.o could not be... (3 Replies)
can anyone help me in writing a shell script to visualize how simple commands work and on what logic. For Eg: ls command how it lists out all the files and directories, need to write a simple script based on the commands source code.:D (0 Replies)
Hello everyone. I am new to writing scripts and I am trying to figure out how to get it to work on a unix system. I am currently using windows xp to write my scripts. My questions are:
1. If the scripts are writtin in Wordpad, what do I save them as before converting them on unix?
2. After... (3 Replies)
Hello,
the bulk of my work is run by scripts. An example is as such:
#!/bin/bash
awk '{print first line}' Input.in > Intermediate.ter
awk '{print second line}' Input.in > Intermediate_2.ter
command Intermediate.ter Intermediate_2.ter > Output.out
It works the way I want it to, but it's not... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write an awk script(company.awk) for the workers file to find the number of workers of each departman, total... (8 Replies)
I have a shell script which executes to write html codes into a text file. My next step is to email the text file so that receiving person (people who i send email to) should be able to see pie/chart or bar graph (whatever i design in my code) in their email. Following is the example of a sample... (7 Replies)
Hi guys,
Hoping someone can help with the below - involves basic commands and some scripting. Thanks so much in advance for your amazing time and help.
3. The file /etc/profile contains the default initialization options for your shell.
Produce a unique list of all variables with uppercase... (1 Reply)
In a Redhat Linux environment, I could run salt commands on the $ prompt but not inside my bash scripts.
It will say command not found and the $PATH variable is exactly the same outside and inside the script.
!#/usr/bin/bash
echo “running”¯
salt "*" cmd.run ‘ls'
exit
Output:-... (8 Replies)