How to use last to see how many times users logged in?

Usermaxn

2/4/24, 7:39 PM

I need to see how many times users logged in.

I used last | sort | uniq -c but it gave me bad data

I need to sort them by number of times they logged in and only show username and number of time.

for example:

username       number of logins
userb          36
usera          12
userd          12
userc          8

1 + 7

logging

sort

uniq

last-command

user68186

2/4/24, 8:24 PM

Which distro and version of Linux are you using?

user68186

2/4/24, 8:54 PM

`last | cut -c 1-8 | sort | uniq -c` does the job but does not the format it the way you want. it also reports blank lines, reboots etc. `awk` will do the job better.

user10489

2/4/24, 9:06 PM

Note that last only gives logins since the last time wtmp was rotated.

Usermaxn

2/4/24, 9:08 PM

I have bash shell. as for what distro its a custom one that my work uses. though it is up to date. anything that worked on my ubuntu has worked there too.

Usermaxn

2/4/24, 9:12 PM

```last | cut -c 1-8 | sort | uniq -c | sort -r``` worked great. thanks.

user68186

2/4/24, 9:23 PM

Questions about custom distros that are not official Ubuntu (or it's flavors) are off topic here. Please frame your question for your Ubuntu computer.

Usermaxn

2/5/24, 12:59 AM

it worked on my official ubuntu 22.04. and I tested it on my work server and it worked there too. I looked at it and it seems to be ubuntu 18 server.

Score:0

Ubuntu

Usermaxn

2/4/24, 9:17 PM

thanks to @user68186

the answer is last | cut -c 1-8 | sort | uniq -c | sort -n -r

+ 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to use last to see how many times users logged in?

Post an answer

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