sudo in bash script: Doesn't always wait for password

Question

I have a simple bash script like this:

#!/usr/bin/env bash

sudo ./some_other_script_01
sudo ./some_other_script_02

When I execute this script, I always see the password prompt, as usual:

[sudo] password for user:

However sometimes, inexplicably, before I have typed my password, ./some_other_script_01 starts getting executed (presumably without root permissions). This happens even though it did prompt me for a password (which I didn't yet provide).

Currently, when this happens, I have to kill the scripts and start again (so that they get executed with root privileges).

Is sudo configured with passwd_timeout set to some too small value in the sudoers file? — Kusalananda
– Kusalananda ♦, Commented Mar 7, 2019 at 21:56
If you want to force sudo to ask for a password, use the -k option. Check your man page for details. — glenn jackman
– glenn jackman, Commented Mar 7, 2019 at 22:18

Michael D. · Accepted Answer · 2019-03-07 21:59:05Z

2

Sudo once is enough, just start the wrapper.sh with sudo. Check if you have root permission in the script no more sudo calls needed.

sudo ./wrapper.sh

wrapper.sh:

#!/usr/bin/env bash

if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

./some_other_script_01
./some_other_script_02

answered Mar 7, 2019 at 21:59

Michael D.

2,96020 silver badges24 bronze badges

1

Thank you. I've marked this as the answer because it's the right thing to do, but it still doesn't solve my mystery. I will keep investigating.

logidelic
– logidelic

2019-03-08 14:24:42 +00:00
Commented Mar 8, 2019 at 14:24

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