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Top Forums Shell Programming and Scripting Scripting Help - Display Processes Post 302387817 by isxrc on Monday 18th of January 2010 11:09:06 AM
Old 01-18-2010
Scripting Help - Display Processes

Hi, I was wondering if somebody could help me as I am struggling with writing a script for a training course.

Ive had to write 5 scripts and this is the last one but am struggling with this even though I understand what it is meant to do.....

PROBLEM: write a script which will allow you to find all users logged on to the system and display the processes they are running. The heading for each user must be their real name not the log in name.

I have identified I need to first use the "finger" command to obtain the full name of a user.

I then need to use ps -u to display the processes info underneath the name of the user.

I believe that this should be added to a while loop which then repeats the process in order to obtain the info for each user.

Please note I am not allowed to use sed or awk for this assignment.

Below is the code I have come up with so far. I think I am getting there but am unsure how to progress. Any help would be appreciated.


#!/bin/bash


name= finger | cut -d' ' -f 2-3 | sort

while read | line
do

echo $name
echo ps -u $line

done
 

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finger(1)							   User Commands							 finger(1)

NAME
finger - display information about local and remote users SYNOPSIS
finger [-bfhilmpqsw] [username...] finger [-l] [ username@hostname 1 [ @hostname 2 .. .@hostname n...]] finger [-l] [ @hostname 1 [ @hostname 2 .. .@hostname n...]] DESCRIPTION
By default, the finger command displays in multi-column format the following information about each logged-in user: o user name o user's full name o terminal name (prepended with a `*' (asterisk) if write-permission is denied) o idle time o login time o host name, if logged in remotely Idle time is in minutes if it is a single integer, in hours and minutes if a `:' (colon) is present, or in days and hours if a `d' is present. When one or more username arguments are given, more detailed information is given for each username specified, whether they are logged in or not. username must be that of a local user, and may be a first or last name, or an account name. Information is presented in multi-line format as follows: o the user name and the user's full name o the user's home directory and login shell o time the user logged in if currently logged in, or the time the user last logged in; and the terminal or host from which the user logged in o last time the user received mail, and the last time the user read mail o the first line of the $HOME/.project file, if it exists o the contents of the $HOME/.plan file, if it exists Note: when the comment (GECOS) field in /etc/passwd includes a comma, finger does not display the information following the comma. If the arguments username@hostname1[@hostname2...@hostnamen] or @hostname1[@hostname2...@hostnamen] are used, the request is sent first to hostnamen and forwarded through each hostnamen-1 to hostname1. The program uses the finger user information protocol (see RFC 1288) to query that remote host for information about the named user (if username is specified), or about each logged-in user. The information dis- played is server dependent. As required by RFC 1288, finger passes only printable, 7-bit ASCII data. This behavior may be modified by a system administrator by using the PASS option in /etc/default/finger. Specifying PASS=low allows all characters less than decimal 32 ASCII. Specifying PASS=high allows all characters greater than decimal 126 ASCII. PASS=low,high or PASS=high,low allows both characters less than 32 and greater than 126 to pass through. OPTIONS
The following options are supported, except that the username@hostname form supports only the -l option: -b Suppresses printing the user's home directory and shell in a long format printout. -f Suppresses printing the header that is normally printed in a non-long format printout. -h Suppresses printing of the .project file in a long format printout. -i Forces "idle" output format, which is similar to short format except that only the login name, terminal, login time, and idle time are printed. -l Forces long output format. -m Matches arguments only on user name (not first or last name). -p Suppresses printing of the .plan file in a long format printout. -q Forces quick output format, which is similar to short format except that only the login name, terminal, and login time are printed. -s Forces short output format. -w Suppresses printing the full name in a short format printout. FILES
$HOME/.plan user's plan $HOME/.project user's projects /etc/default/finger finger options file /etc/passwd password file /var/adm/lastlog time of last login /var/adm/utmpx accounting ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWrcmds | +-----------------------------+-----------------------------+ SEE ALSO
passwd(1), who(1), whois(1), passwd(4), attributes(5) Zimmerman, D., The Finger User Information Protocol, RFC 1288, Center for Discrete Mathematics and Theoretical Computer Science (DIMACS), Rutgers University, December 1991. NOTES
The finger user information protocol limits the options that may be used with the remote form of this command. SunOS 5.10 6 Nov 2000 finger(1)
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