[SOLVED] Script which will login to particular user and execute some commands.

linux_beginer · 03-19-2011, 06:33 AM

Hi All,

I am trying to write one script. Purpose of my script is that it will login to particular user and it will execute some set of commands.

What I was trying....

#!/bin/bash

su - tom
ls -lrt
gzip *.dbf

but it is not working properly. what happening is I am getting the shell of user tom but but commands are not getting executed.

I am running this script as root user. what should I have to do if I wanted to run this script as normal user. I want to pass the password in the script only. (--stdin will work)

savona · 03-19-2011, 08:28 AM

When you su - tom it opens a new shell and the script it running in the original shell.

Try this.

#!/bin/bash
su tom -c "ls -lrt"
su tom -c "gzip *.dbf"

This will pass a command to the current shell as the user specified.

savona · 03-19-2011, 08:33 AM

Quote:

Originally Posted by savona

When you su - tom it opens a new shell and the script it running in the original shell.

Try this.

#!/bin/bash
su tom -c "ls -lrt"
su tom -c "gzip *.dbf"

This will pass a command to the current shell as the user specified.

I just wanted to add something to make sure you understand what is going on here. With the work around I gave each command will be run in its own shell instance.

Can I ask you would would want to do this anyway?

akamikeym · 03-19-2011, 08:37 AM

Or just put the commands in script and run them as whatever user you want when you want them:

myscript.sh

Code:

#!/bin/bash
ls -lrt
gzip *.dbf

Then you can call it with:

su tom -c "sh myscript.sh"

Or

sudo -u tom sh myscript.sh

savona · 03-19-2011, 08:40 AM

Quote:

Originally Posted by akamikeym

Or just put the commands in script and run them as whatever user you want when you want them:

myscript.sh

Code:

#!/bin/bash
ls -lrt
gzip *.dbf

Then you can call it with:

su tom -c "sh myscript.sh"

Or

sudo -u tom sh myscript.sh

GREAT POINT! There is always more than one way to skin a cat with linux.

linux_beginer · 03-20-2011, 01:05 PM

Quote:

Originally Posted by savona

GREAT POINT! There is always more than one way to skin a cat with linux.

!!!Thanx savona!!! Problem is solved

linux_beginer · 03-20-2011, 01:06 PM

Quote:

Originally Posted by akamikeym

Or just put the commands in script and run them as whatever user you want when you want them:

myscript.sh

Code:

#!/bin/bash
ls -lrt
gzip *.dbf

Then you can call it with:

su tom -c "sh myscript.sh"

Or

sudo -u tom sh myscript.sh

!!!Thanx akamikeym!!! Problem is solved

---------- Post added 03-20-11 at 01:07 PM ----------

Quote:

Originally Posted by akamikeym

Or just put the commands in script and run them as whatever user you want when you want them:

myscript.sh

Code:

#!/bin/bash
ls -lrt
gzip *.dbf

Then you can call it with:

su tom -c "sh myscript.sh"

Or

sudo -u tom sh myscript.sh