13

I would like to create an alias that does something like this:

alias userYYY='sudo su userYYY; cd /a/path/that/only/userYYY/has/access'

So then from my command line, I am logged in with a sudo user, and I would like to type the alias userYYY so that my shell is now logged with userYYY and pwd is /a/path/that/only/userYYY/has/access.

How can I do that? This userYYY is for running some processes, and there must be anything in its home. Hence, I tried changing its $HOME using:

sudo usermod -m -d /a/path/that/only/userYYY/has/access userYYY 

And then from my shell with my sudoer file I did sudo su userYYY. But that didn't work. The only that worked was sudo su -l userYYYY but that opened a new bash inside my original shell (-bash-4.1$ ....).

In summary, what I want is to simply avoid having to write 2 lines in my shell:

sudo su userYYY
cd /a/path/that/only/userYYY/has/access

Any ideas?

10
alias userYYY='sudo su userYYY -c "cd /a/path/that/only/userYYY/has/access; /bin/bash"'
  • seems to work fine, but not sure how to remove this error, or if its an issue. using ubuntu 14.04LTS, noticed there was an issue with on debian... bash: cannot set terminal process group (13964): Inappropriate ioctl for device\nbash: no job control in this shell – sonjz Feb 24 '15 at 21:22
  • 1
    actually, after using it for a while, i noticed that the terminal gets killed pretty frequently using this method (disconnect around 15-30 min, regularly, my terminal lasts around 6hrs before disconnect) – sonjz Feb 25 '15 at 20:19
  • Just dug up this, this behaviour is due to a security fix: unix.stackexchange.com/questions/65843/… – sonjz Feb 25 '15 at 20:34
  • this has helped me edit my .bashrc file to sudo then cd where as having 2 separate lines just wasn't working. – RozzA Feb 6 '19 at 1:41
2

One option would be to edit ~/.bashrc of the target user, and add cd there:

cd /a/path/that/only/userYYY/has/access
0

Short answer - you can't. The sudo su starts a new shell which must exit before it gets to the cd command.

0

For me a combination of sudo and screen worked out:

sudo -iu vagrant screen -mS npm_install bash -c 'cd /vagrant && npm install'

This command first switches to the vagrant user. Then as vagrant changes the directory to /vagrant and executes npm install.

0

I know this is slightly different than the original question, but the idea is to run the command as a different user without typing in a password when policy prohibits sudo su <user> -c.

sudo -u userYYY -- sh -c "cd /a/path/that/only/userYYY/has/access; /bin/bash"

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.