need help with shell programing script Post: 302513051

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Homework and Emergencies Homework & Coursework Questions need help with shell programing script Post 302513051 by operator on Tuesday 12th of April 2011 08:53:42 AM

04-12-2011

Registered User

need help with shell programing script

1. The problem statement, all variables and given/known data:
Write a Shell script to automatically check that a specified user is logged in to the computer.
The program should allow the person running the script to specify the name of the user to be checked, the frequency in seconds at which the script should check. If a checking frequency is not specified, it should default to 60 seconds
The script should check for the specified user and if found should output a message with a �beep� or �bell� sound to the screen stating that the user is logged in. It should also output a message to a log file stating that the user is logged in and specifying the date and time.
If the user is not logged in the script should output a message without any �beep� sound to the screen stating that the user is not logged in.
The script should allow a person running the script to specify the user name on the command line and optionally, a check frequency in seconds and a third argument �q� �q� . If �q� is present as a third argument, The script should omit any output to the screen or �beep� sound but should log to a log file the message stating that the user is logged in and giving the time.

2. Relevant commands, code, scripts, algorithms:
The command to run the script would be as follows:
checklogin username 30 q where �checklogin� is the script name, �username� is the name of the user, �30� is the optional frequency to check in seconds, and �q� is the optional argument to suppress screen output.
The script should check that the number of arguments supplied is between 1 and 3 and if it is not, should terminate with an error message showing the correct syntax for the command.

3. The attempts at a solution (include all code and scripts):
who | grep $username
echo -e "\a"

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Blanchardstown institute of technology, dublin, ireland, Ronan O'Mallay, dt228

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).

operator

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mssql_free_statement

MSSQL_FREE_STATEMENT(3) 												   MSSQL_FREE_STATEMENT(3)

mssql_free_statement - Free statement memory

SYNOPSIS

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DESCRIPTION

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PARAMETERS

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RETURN VALUES

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PHP Documentation Group 												   MSSQL_FREE_STATEMENT(3)

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