8
votes
2answers
113 views

How do I elevate privileges in the middle of pipeline?

My guess was as follows: echo "Generating some text" | su - -c cat >/output/file But su says: su: must be run from a terminal What would you do?
1
vote
2answers
77 views

Script to su -c into a screen is not working as intended

I'm working on a script that will allow me to load up a screen from a user via sudo and su -c. However, when I use it, it will just show the shell of the user: sudo su -c "script /dev/null; screen -r ...
1
vote
2answers
883 views

How can i run a part of a script as a different user?

#!/bin/ksh (some code) Log=~/my.log chown USER1 filename su - USER1 -c " date | tee -a ${Log} 2>&1; cd /blah/blah if [ SOMECONDITION ] then sh ./somescript.ksh > logfile fi exit" | tee -a ...
1
vote
1answer
387 views

How does this su -c “…” command seem to pass two commands instead of one?

I am trying to understand the script below and I am confused about the su line. I understand the postgres command line arguments. when I do man su the manual says -c, --command=COMMAND ...
1
vote
3answers
91 views

Confused on user and su in linux

How could I run a script as a specific user (non-root)? As this? sudo su - john /usr/share/script.pl for user john?
10
votes
4answers
7k views

Why doesn't “sudo su” in a shell script run the rest of the script as root?

A sample script can be as below: #!/bin/bash sudo su ls /root When using ./test.sh as the normal user, instead run ls as super user and exit, it switches to root; and when I logout, it executes ls ...
0
votes
1answer
349 views

script to switch users keep running? [duplicate]

Possible Duplicate: Switching to superuser while shell script is running I need to switch users in a script and keep executing commands. I thought -c would help but i don't know how to use ...
1
vote
3answers
1k views

Shell script to become root

How can we write a shell script to become root? That is I donot want to input the password at prompt it should be within the script itself. I was trying to make but failed to do so.Is it possible, if ...
2
votes
2answers
349 views

Am I using bash after this ordeal?

On Mountain Lion, host Coguaro, I login as user coconutpowder using bash: Coguaro:~ coconutpowder$ echo $0 -bash I need to run a command with elevated privileges so I try to su switch to root but ...
2
votes
3answers
1k views

Switching to superuser while shell script is running

I have a shell script that contains the following lines: CURRENT_USER=${USER} echo $CURRENT_USER su echo switch to `who am i` Once the 2nd line is executed, the shell prompts me to enter the root ...