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Full Discussion: Reporting last login details
Top Forums UNIX for Advanced & Expert Users Reporting last login details Post 302987346 by jim mcnamara on Thursday 8th of December 2016 09:56:49 AM
Old 12-08-2016
The last command is kind of a sore spot for me. I believe the date works the way the ls command handles dates - when displaying a record, after six months of age for the record, the year shows up.

This works to get a full date. The big number you see is the UNIX time (seconds since Jan 1970).

Code:
cat /var/adm/wtmpx | /usr/lib/acct/fwtmp | tac  > tmpfile
awk  '!arr[$1]++ {print $1 $2}'  tmpfile

-note the cat is intended fwtmp only reads from stdin. Since this is messy I would consider simply living with the knowledge of how dates are displayed.

You are going to have extra fields, so the awk needs some changing to suit your needs. i.e., change the awk print statement to show what you want
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GRAB-ACCOUNT(8) 						 chiark utilities						   GRAB-ACCOUNT(8)

NAME
grab-account - add new account synchronised to remote system SYNOPSIS
grab-account local-user source [remote-user] DESCRIPTION
grab-account reconfigures sync-accounts to start synchronising a specified local user (which may not yet exist) from a specified remote system, and then invokes sync-accounts once to synchronise from that source. /etc/sync-accounts/createuser should contain a addhere line in the appropriate source section (ie, after host source). grab-account adds a user local-user [remote=remote-user] directive just before addhere and runs sync-accounts source. EXIT STATUS
0 All went well. any other There were problems. FILES
/etc/sync-accounts; See also sync-accounts(8). ENVIRONMENT
See sync-accounts(8). BUGS
There is no locking of /etc/sync-accounts so do not invoke grab-account from a script, or more than once at a time by hand. Do not edit /etc/sync-accounts by hand and also simultaneously run grab-account. The mechanism involving addhere is suboptimal. This should be done with an include feature in sync-accounts, so that grab-account does not have to edit a configuration file that really belongs to the sysadmin. AUTHOR
grab-account and this manpage are part of the sync-accounts package which was written by Ian Jackson <ian@chiark.greenend.org.uk>. They are Copyright 1999-2000,2002 Ian Jackson <ian@davenant.greenend.org.uk>, and Copyright 2000-2001 nCipher Corporation Ltd. The sync-accounts package is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, consult the Free Software Foundation's website at www.fsf.org, or the GNU Project website at www.gnu.org. SEE ALSO
sync-accounts(8), sync-accounts(5), passwd(5) Greenend 14th July 2002 GRAB-ACCOUNT(8)
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