[SOLVED] example on the cut slide to display a list of users logged in.

abhinav4 · 01-15-2012, 10:12 AM

example on the cut slide to display a list of users logged in.

I know who will be used, but in the delimiter part dont know how to specify a space or a tab

Dick Dastardly · 01-15-2012, 10:21 AM

Specify a space like

Code:

echo "a b c"|cut -d" " -f2

Just put a tab in place of the space (cut -d" ") for tabs.

This should do the trick

Code:

who -u|cut -d" " -f1|uniq

devUnix · 01-15-2012, 10:45 AM

Code:

[demo@localhost ~]$ who | cut -d " " -f 1
demo
demo
[demo@localhost ~]$ who | cut -d " " -f 1 | uniq
demo


[demo@localhost ~]$ who | awk '{print $1}' | sort -u
demo
[demo@localhost ~]$

abhinav4 · 01-15-2012, 11:05 PM

Thanks All