need to get last login info of each user

tahaz · 05-17-2012, 07:33 PM

hi tink
im getting this when i tried to run ur command on shell

Quote:

bash-2.05# last |tac|awk '$0 !~ /^[[:space:]]*$/ && $1 !~ /shutdown|reboot/ && $2 != "begins" {a[$1]=$0}END{for(i in a){print a[i]}}'
bash: tac: command not found
awk: a is not an array

chrism01 · 05-17-2012, 07:57 PM

Try

Code:

which tac

On my RHEL systems its in /usr/bin and is in the coreutils pkg.
HTH

Tinkster · 05-17-2012, 08:22 PM

Quote:

Originally Posted by tahaz

hi tink
im getting this when i tried to run ur command on shell

Hmmm ... if 'tac' isn't installed, use sed '1!G;h;$!d' instead :}

As for a is not an array: which OS are you on, what version of awk is this?

Cheers,
Tink

tahaz · 05-29-2012, 04:57 PM

sorry for the late reply but manager was in a hurry to finish the audit so we just gave the customer the whole last log on the servers, much easier if you just want to dump last output to a file and pass it on

Tinkster · 05-30-2012, 07:06 PM

No worries ... and it's totally OK to let the auditors do the heavy lifting ;D