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Full Discussion: login audit bash script
Top Forums Shell Programming and Scripting login audit bash script Post 302599842 by bashily on Saturday 18th of February 2012 11:15:15 PM
Old 02-19-2012
This is what I have done so far with your help:
Code:
#!/bin/bash
if [ $# -ne 1 ]; then
    echo Usage: timeon username
    exit 1
fi
if [ $# -eq 1 ]
    then
        user=$1
#    else
#        user=$USER
fi
# check if the user exists on Matrix
a=$(ypcat passwd | grep -w ^$user)
if [ "$a" == "" ]
    then
        echo "$user does not exist on Matrix, try again." >&2
        exit 2
elif [ "$a" != "" ]; then
        # get the username
        username=$(echo $a | cut -d: -f1)
        echo Username:    $username
fi
# Check for existing /tmp/tst folder
if [ "/tmp/tst" != "" ]; then
rm -rf /tmp/tst
# Make a directory in /tmp called tst
mkdir -p /tmp/tst
fi
# Copy wtmp files in /tmp/tst folder and unzip them:

cd /tmp/tst                     # safe place to work
tfile=/tmp/tst/wtmp.$$          # temp file to uncompress into
big_file=/tmp/tst/$USER.wtmp    #collect all output from wtmp into one file

ls /var/log/wtmp*bz2 | while read file    # for each wtmp file
do
    bunzip2 -dc $file >$tfile   # uncompress writing output to tmp file
    last -F -a -f $tfile        # run last on it
done >$big_file                 # save all output from last in one file
last -F -a >>$big_file          # append formatted output from current wtmp
rm $tfile                       # tmp file not needed

### parse your big file (/tmp/$USER.wtmp) here #####

# cleanup before exit
#rm $big_file
b=$( cat /tmp/tst/$USER.wtmp | grep $user )
echo $b

but what I get as the output is some data that I don't know how to add them up for the followings:
Start Date: Sept 27, 2011 End Date : Jan 26, 2012 Time On : 31hrs 12min
I know that I have to use grep and bc but don't know how.
This is the example of my output:
Quote:
Username: kkaur73
kkaur73 pts/5 Thu Jun 9 12:12:43 2011 - Thu Jun 9 12:21:56 2011 (00:09) 142.204.247.5 kkaur73 pts/0 Fri Jun 24 01:10:43 2011 - Fri Jun 24 02:08:42 2011 (00:57) cpe78cd8e665c10-cm78cd8e665c0d.cpe.net.c kkaur73 pts/6 Wed Aug 3 11:52:58 2011 - Wed Aug 3 12:34:58 2011 (00:42) 142.204.142.253 kkaur73 pts/3 Wed Aug 3 11:45:15 2011 - Wed Aug 3 13:53:19 2011 (02:08) 142.204.142.253 kkaur73 pts/4 Tue Aug 2 14:33:38 2011 - Tue Aug 2 14:41:42 2011 (00:08) 142.204.142.227 kkaur73 pts/4 Tue Aug 2 12:48:36 2011 - Tue Aug 2 13:09:06 2011 (00:20) bas2-toronto61-2925079963.dsl.bell.ca kkaur73 pts/3 Sat Jul 30 12:05:51 2011 - Sat Jul 30 13:36:24 2011 (01:30) bas2-toronto61-2925081107.dsl.bell.ca kkaur73 pts/0 Thu Jul 28 21:31:13 2011 - Fri Jul 29 00:01:02 2011 (02:29) bas2-toronto61-1168013430.dsl.bell.ca kkaur73 pts/0 Sun Jul 24 16:04:01 2011 - Sun Jul 24 18:31:13 2011 (02:27) bas2-toronto61-2925080149.dsl.bell.ca kkaur73 pts/0 Tue Aug 9 10:53:54 2011 - Tue Aug 9 11:12:30 2011 (00:18) 142.204.248.107 kkaur73 pts/0 Tue Aug 9 01:35:13 2011 - Tue Aug 9 01:57:46 2011 (00:22) bas2-toronto61-2925079899.dsl.bell.ca kkaur73 pts/3 Mon Aug 8 23:39:59 2011 - Tue Aug 9 01:10:44 2011 (01:30) bas2-toronto61-2925080350.dsl.bell.ca kkaur73 pts/1 Mon Aug 8 21:25:50 2011 - Tue Aug 9 01:10:44 2011 (03:44) bas2-toronto61-2925080350.dsl.bell.ca kkaur73 pts/1 Wed Aug 3 14:58:45 2011 - Wed Aug 3 15:15:05 2011 (00:16) 142.204.248.97
 

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