I have 4 fields and I want to start from last column and ignore the first 3 columns. How can I use NF in awk to do that?
root pts/0 192.168.108.1 Mon Mar 19 08:45 still logged in
root tty1 Mon Mar 19 08:45 still logged in
reboot system boot 3.10.0-693.el7.x Mon Mar 19 08:44 - 08:49 (00:04)
root pts/0 192.168.108.1 Sun Mar 18 13:06 - crash (19:37)
root tty1 Sun Mar 18 13:06 - crash (19:38)
reboot system boot 3.10.0-693.el7.x Sun Mar 18 13:01 - 08:49 (19:47)
root pts/2 192.168.108.1 Sat Mar 17 12:38 - 13:09 (00:31)
root pts/1 192.168.108.1 Sat Mar 17 10:49 - down (02:20)
root pts/1 192.168.108.1 Fri Mar 16 23:17 - 00:30 (01:13)
root pts/0 192.168.108.1 Fri Mar 16 21:25 - 12:56 (15:31)
root tty1 Fri Mar 16 21:25 - 13:09 (15:44)
reboot system boot 3.10.0-693.el7.x Fri Mar 16 21:04 - 13:09 (16:05)
root pts/2 192.168.108.1 Fri Mar 16 08:45 - crash (12:18)
root tty1 Fri Mar 16 08:45 - 17:25 (08:40)
syslog **Never logged in**
I want to show only:
Sun Jan 19 13:52:08 -0800 2018
**Never logged in**
Fri Mar 16 08:45 - 17:25 (08:40)
Mon Mar 19 08:45 still logged in
awk -F' ' '{ print $NF }'
grep -oE '\b(Mon|Fri|Sat|Sun) +(Feb|Mar).+'