Run command after login from specific tty

Question

I'd like to achieve this: 1) When user (anybody) logs in to tty1, then some specific command(s) will run automatically. 2) When user (anybody) logs in to other tty, then no command(s) will run automatically.

For example: When I log in to tty1, free command will run. I put the commands into .profile file, but it applies to all tty. Is there any solution how to make this possible? Thank you

score 4 · Accepted Answer · answered Jul 28 '17 at 09:19

4

Use a simple condition to determine which tty you are logging into:

if [[ "$(tty)" == "/dev/tty1" ]]
 then
  # do whatever you want here
fi

also if you want to your command get run for all users, instead of .profile put it into /etc/profile.

answered Jul 28 '17 at 09:19

Ravexina

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Yup, I use exactly the same structure to run a report on df and couple other commands myself. Good way to go, although note that [[ is specific to bash – Sergiy Kolodyazhnyy Jul 28 '17 at 09:49
Sir, that is exactly what I was looking for. Thank you – WantToLearn Jul 28 '17 at 10:24
@WantToLearn You're welcome :) – Ravexina Jul 28 '17 at 10:25

Run command after login from specific tty

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