Homework questions, book is lacking answers? Post: 302464623

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Top Forums UNIX for Dummies Questions & Answers Homework questions, book is lacking answers? Post 302464623 by KyleBucket on Wednesday 20th of October 2010 02:37:10 PM

10-20-2010

Registered User

Homework questions, book is lacking answers?

Hey you guys,

There's a couple questions I cannot find the answers to anywhere in this book for my Operating Systems class, hopefully you guys could help. I believe we are in the Bourne shell.

1. Match each description to the appropriate type of variable

Used in shell programs

Also called personal variables

Also called standard shell variables

Always completely capitalized

A. Environment variables
B. User-created variables
C. Positional parameters

2. Which of the following is the appropriate command to change the value of the environment variable PATH so it retains everything that was in it before, but so that it will have /scripts appended to the end of it?

PATH=$PATH:/scripts
$PATH=PATH:/scripts
PATH=$PATH + /scripts
$PATH=PATH + /scripts

3. You wish to run a script named myscript which is located in the directory /scripts. The directory is NOT contained in the PATH environment variable's value, nor do you wish to make it so. In order to execute the script, you could type the following on the command line:
___________ /scripts/myscript

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doctools_lang_faq(3tcl) 					Documentation tools					   doctools_lang_faq(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME

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OVERVIEW

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KEYWORDS

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