Change password via bash script

[tmw]

Hello,
I have a question how can i change user password in bash script, this doest work (i run this script as root):


#!/usr/local/bin/bash
$(passwd foo) <<EOF
pass
pass
EOF


Is it possible to do this via bash script?

[vivek]

Read pw command man page and look for -h FD option. Add user called foo and set password to BAR
echo BAR | pw add user foo -h 0
To modify password for existing user called tom:
echo jerry | pw mod user tom -h 0

[tmw]

Thx for this. But i need this via passwd :/. In other words i need to type a password via script. But script must be non parametrs.

[tmw]

Ok, i got answer. I must use expect for this :).

[rhyous]

Post an example of your script when you are done so it can be available for others.

[tmw]

Hi, sorry for a big delay. This script will set password by passwd without user interaction:


#!/usr/local/bin/bash
LOG=tomek
PASS=haslo1
expect << EOF
spawn passwd $LOG
expect "New Password:"
send "${PASS}\r"
expect "Retype New Password:"
send "${PASS}\r"
expect eof;
EOF


This will set password "haslo1" for user "tomek".

[VictorM]

tnx for the script - I could use this to deploy NAS boxes unattended, smart trick...