CS476/576

Assignment #1

Due Midnight, Wednesday   Sept  26, 2007

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Write a shell script (in any shell you like)  with the following descriptions:

NAME

NoLog -   Find users who did not recently login to UNIX hosts

SYNOPSIS

NoLog  <hostlist_file> [<output_file>]

DESCRIPTION

This comand is used to gather information about users who did not recently login to any UNIX host listed in <hostlist> .
Some of the UNIX hosts where any user may login are:

andromeda

cash

dilbert

hydra

isis

ra

tango

The information about each user is in the form:

login_name:  full-name  (group)

If the user does not specify an <output_file>

the program uses <stdout> to display its output.

Examples:

> NoLog input

(some of the output lines are listed below)

kalburgi: Vijay Kalburgi (faculty)

rao: Nageswara Rao (faculty)

yamany: Sameh Yamany (faculty)

aupton: alesia upton (student)

awill: andrew will (student)

lundquis: Ling Lin Lundquist (grad)

babu_s: Sean Babu (guest)

kumar: kumar sharshembiev (staff)

cs110: cs110 (class)

> NoLog input output

SEE ALSO

rsh, last,  ypcat passed,  ypcat group