I would like to find out the last time all users have logged in or out. I tried the last command, but it could not find the wtmp file in /var/adm (I searched in othe directories also). This is an AIX rs6000 4.2.1 system. We are moving our applications from this system to an AIX 5.2 system and I... (11 Replies)
I'm trying to execute a single shell command that will give me a sorted list of all the users currently logged into the system, displaying the users name as it appears in /etc/passwd.
I've tried
awk -F: '{print $1}' /etc/passwd | xargs finger -s | cut -c11-28 | uniq
This list whoever does... (7 Replies)
I need a command that will list all the users and their last login date & time. I was trying the last command and the who command, but can't get exactly what I need.
I just need the output to be user name and last login date .
Thanks for your help! (3 Replies)
Hi,
Can I get a script to list out all the users, who has not logged on since last 90 days. Last command in not working due due to /var/adm/wtmpx is more than 2 GB.
Thanks in advance.
Regards,
Roni (10 Replies)
i'm sorry if yesterday i posted this thread in unix for dummies forums, :D
i am a newbie in C programming
i want to get active users list and their login time...
i have search and learn about passwd and utmp, but i only can get user list without their login time...
do you have an idea... (2 Replies)
I need to find what users are currently logged onto the system that is easy just a simple who | awk '{ print $1 }' (thats all I need for the part), but I also need to find how long they have been logged on and the total amount of file space they are using.
Thanks in advance, I have been looking... (3 Replies)
How can I get the list of logged in users in the system programmatically?
I can get the list with 'who' or 'users' commands but I need to get the list programmatically...
May someone help, please?
Thanks in advance. (2 Replies)
1. The problem statement, all variables and given/known data:
Show all users who are currently logged in, sorted from earliest to latest log in time. The log in time includes the month, day, and time.
2. Relevant commands, code, scripts, algorithms:
finger, who, sort, pipe, head, tail,
... (8 Replies)
Hi Guys!
I am sure that this question might appeared previously, but I still don't know how to show a list of logged out users. Please help with this!
Thanks in advance:) (5 Replies)
Discussion started by: saloliubliu
5 Replies
LEARN ABOUT CENTOS
uniq
UNIQ(1) User Commands UNIQ(1)NAME
uniq - report or omit repeated lines
SYNOPSIS
uniq [OPTION]... [INPUT [OUTPUT]]
DESCRIPTION
Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
Mandatory arguments to long options are mandatory for short options too.
-c, --count
prefix lines by the number of occurrences
-d, --repeated
only print duplicate lines, one for each group
-D, --all-repeated[=METHOD]
print all duplicate lines groups can be delimited with an empty line METHOD={none(default),prepend,separate}
-f, --skip-fields=N
avoid comparing the first N fields
--group[=METHOD]
show all items, separating groups with an empty line METHOD={separate(default),prepend,append,both}
-i, --ignore-case
ignore differences in case when comparing
-s, --skip-chars=N
avoid comparing the first N characters
-u, --unique
only print unique lines
-z, --zero-terminated
end lines with 0 byte, not newline
-w, --check-chars=N
compare no more than N characters in lines
--help display this help and exit
--version
output version information and exit
A field is a run of blanks (usually spaces and/or TABs), then non-blank characters. Fields are skipped before chars.
Note: 'uniq' does not detect repeated lines unless they are adjacent. You may want to sort the input first, or use 'sort -u' without
'uniq'. Also, comparisons honor the rules specified by 'LC_COLLATE'.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report uniq translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO comm(1), join(1), sort(1)
The full documentation for uniq is maintained as a Texinfo manual. If the info and uniq programs are properly installed at your site, the
command
info coreutils 'uniq invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 UNIQ(1)