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How would I have a script which opens a tmux session and then changes to different user without password prompt?

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I am trying to create a script that opens a new tmux session, then changes user and runs a script inside that tmux session.

The purpose of this is to create a new tmux session for a game server, which has a different unix user assigned to it. I have heard that giving servers their own users was good practice, but I would still like to have a script in the home directory of my main user to start the server for convenience. I would like the tmux session to be available from my main user, yet be logged in to the game server user.

The main problem is that there is a password prompt that I cannot get around, requiring me to attach to the tmux session, enter the password, and then detach.
This is what I have tried:

#!/bin/sh



tmux new -d -s Minecraft sudo -u minecraft /home/minecraft/server/start.sh

I have tried every combination of running the script with sudo, adding su - Minecraft to the script, and su Minecraft -c "script", and in each one it either requires me to attach to the tmux session and login or just does not work, leaving no tmux session open.

I am trying to find a solution which would allow me to type in my sudo password or the other user's password when I run the script which invokes tmux, instead of having to login by attaching and then detaching.

Any tips would be appreciated. This is obviously a hobby project and not of vital importance. I am also new to linux and am trying to learn best practices. I am open to being told if I am taking the the wrong approach.

shell-script sudo users tmux su

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asked 1 hour ago

cory171185cory171185

1

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0

I am trying to create a script that opens a new tmux session, then changes user and runs a script inside that tmux session.

The purpose of this is to create a new tmux session for a game server, which has a different unix user assigned to it. I have heard that giving servers their own users was good practice, but I would still like to have a script in the home directory of my main user to start the server for convenience. I would like the tmux session to be available from my main user, yet be logged in to the game server user.

The main problem is that there is a password prompt that I cannot get around, requiring me to attach to the tmux session, enter the password, and then detach.
This is what I have tried:

#!/bin/sh



tmux new -d -s Minecraft sudo -u minecraft /home/minecraft/server/start.sh

I have tried every combination of running the script with sudo, adding su - Minecraft to the script, and su Minecraft -c "script", and in each one it either requires me to attach to the tmux session and login or just does not work, leaving no tmux session open.

I am trying to find a solution which would allow me to type in my sudo password or the other user's password when I run the script which invokes tmux, instead of having to login by attaching and then detaching.

Any tips would be appreciated. This is obviously a hobby project and not of vital importance. I am also new to linux and am trying to learn best practices. I am open to being told if I am taking the the wrong approach.

shell-script sudo users tmux su

share|improve this question

asked 1 hour ago

cory171185cory171185

1

New contributor

cory171185 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I am trying to create a script that opens a new tmux session, then changes user and runs a script inside that tmux session.

The purpose of this is to create a new tmux session for a game server, which has a different unix user assigned to it. I have heard that giving servers their own users was good practice, but I would still like to have a script in the home directory of my main user to start the server for convenience. I would like the tmux session to be available from my main user, yet be logged in to the game server user.

The main problem is that there is a password prompt that I cannot get around, requiring me to attach to the tmux session, enter the password, and then detach.
This is what I have tried:

#!/bin/sh



tmux new -d -s Minecraft sudo -u minecraft /home/minecraft/server/start.sh

I have tried every combination of running the script with sudo, adding su - Minecraft to the script, and su Minecraft -c "script", and in each one it either requires me to attach to the tmux session and login or just does not work, leaving no tmux session open.

I am trying to find a solution which would allow me to type in my sudo password or the other user's password when I run the script which invokes tmux, instead of having to login by attaching and then detaching.

Any tips would be appreciated. This is obviously a hobby project and not of vital importance. I am also new to linux and am trying to learn best practices. I am open to being told if I am taking the the wrong approach.

shell-script sudo users tmux su

share|improve this question

asked 1 hour ago

cory171185cory171185

1

New contributor

cory171185 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

#!/bin/sh



tmux new -d -s Minecraft sudo -u minecraft /home/minecraft/server/start.sh

share|improve this question

asked 1 hour ago

cory171185cory171185

1

New contributor

cory171185 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 1 hour ago

cory171185cory171185

1

New contributor

cory171185 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 1 hour ago

cory171185cory171185

1

New contributor

cory171185 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 1 hour ago

cory171185cory171185

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Two approaches:

1. Edit /etc/sudoers to allow your user to do sudo -u minecraft,
   or specifically sudo -u minecraft /home/minecraft/server/start.sh,
   without a password.


2. Do sudo -u minecraft sleep 0 in your script before the tmux command. 
   This will ask you for your password. 
   Subsequent sudo commands for the next few minutes
   will not require a password.

share|improve this answer

answered 1 hour ago

G-ManG-Man

13.8k93870

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Two approaches:

1. Edit /etc/sudoers to allow your user to do sudo -u minecraft,
   or specifically sudo -u minecraft /home/minecraft/server/start.sh,
   without a password.


2. Do sudo -u minecraft sleep 0 in your script before the tmux command. 
   This will ask you for your password. 
   Subsequent sudo commands for the next few minutes
   will not require a password.

share|improve this answer

answered 1 hour ago

G-ManG-Man

13.8k93870

add a comment | 

0

Two approaches:

1. Edit /etc/sudoers to allow your user to do sudo -u minecraft,
   or specifically sudo -u minecraft /home/minecraft/server/start.sh,
   without a password.


2. Do sudo -u minecraft sleep 0 in your script before the tmux command. 
   This will ask you for your password. 
   Subsequent sudo commands for the next few minutes
   will not require a password.

share|improve this answer

answered 1 hour ago

G-ManG-Man

13.8k93870

add a comment | 

Two approaches:

1. Edit /etc/sudoers to allow your user to do sudo -u minecraft,
   or specifically sudo -u minecraft /home/minecraft/server/start.sh,
   without a password.


2. Do sudo -u minecraft sleep 0 in your script before the tmux command. 
   This will ask you for your password. 
   Subsequent sudo commands for the next few minutes
   will not require a password.

share|improve this answer

answered 1 hour ago

G-ManG-Man

13.8k93870

share|improve this answer

answered 1 hour ago

G-ManG-Man

13.8k93870

answered 1 hour ago

G-ManG-Man

13.8k93870

answered 1 hour ago

G-ManG-Man

13.8k93870