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Editorial Team
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Asked: 2026-06-03T22:12:03+00:00

For example, say if I have a script saying: #!/bin/bash sudo setpci -s 00:02.0

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For example, say if I have a script saying:

#!/bin/bash
sudo setpci -s 00:02.0 F4.B=00

How do I put the root password into the script so that it accepts it as the password when it reads and executes the sudo line (so I don’t have to type it manually)?

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1 Answer

  1. Editorial Team

    Spawning an expect session within your bash script is typically how you automate interactive prompts.

    e.g.

    expect -c "
spawn sudo setpci -s 00:02.0 F4.B=00
expect -nocase \"password:\" {send \"$PASS\r\"; interact}
"

    Note that this isn’t the recommended approach in this case as it is a huge security hole to store your root password in a bash script.

    The correct solution would be to edit your /etc/sudoers/ to not prompt you for a password for that binary.

    #in /etc/sudoers
neohexane ALL=(ALL) NOPASSWD : /usr/bin/setpci
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