unix/mac questions about password changes or storage, the related `.passwd` file or `passwd` command
Questions tagged [passwd]
140 questions
0
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0 answers
Can't non-interactively change password on remote machine using sshpass and chpasswd?
I'm trying to write a script that logs in a user over SSH and than changes that user's password. The line of code I currently use for that looks like the following:
sshpass -p $password ssh $user@$ipadress "echo $user:$password_new | chpasswd"
It…
dataprolet
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- 2
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votes
1 answer
busybox passwd script run failed
busybox passwd can't use --stdin option, when i excute passwd,it need to input password twice,
i want to write a shell script to change auto because some reason.
i do passwd manual，it works fine。
your textbut when i write a script like…
Linn
- 1
- 1
0
votes
2 answers
nrpe[xxxxx]: Warning: Could not set effective GID
I could not get reason of Warning messages I am getting in /var/log/messages:
Apr 10 03:41:23 lsv-vm203 nrpe[85287]: Warning: Could not set effective GID=994
Apr 10 03:41:23 lsv-vm203 nrpe[85287]: Warning: Unable to change supplementary groups using…
Maxim Maximov
- 31
- 5
0
votes
2 answers
Force password expiration multiple-users one-time
How can I query all users on a box and force password expiration?
Currently, I am querying all users:
getent shadow | awk -F: '$2 ~ /^\$/ || $2 ~ /^!\$/ {print $1} {print $3}'
And this gets me the user name as well as the last password change, but…
Justin Lawhorne
- 51
- 6
0
votes
1 answer
Change rights of `/etc/passwd` in Dockerfile
I am building a Podman image for Openshift, and have an issue with permissions.
Following this guide, and because Openshift assigns a random UID and a GID "0" when running containers, I try to chmod the /etc/passwd to be writable by its group and…
MeanStreet
- 1,217
- 1
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- 33
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votes
1 answer
retrieving usernames in a system in bash
I'm new to scripting in bash and would like to retrieve all user names of a Linux system along with their home directories. Each username got to be in a single line.
Is this is the best way to do this? or is there any better way?
#! /bin/bash
# list…
0
votes
1 answer
Solaris 11 express and indirection
I am trying to use bash indirection in Solaris 11 express to change the password for a user. The code I am using is
$ passwd testuser << MARKER
> testpassword
> testpassword
> MARKER
When I run this, I still get prompted for a password on the…
jobless
- 145
- 1
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- 4
0
votes
0 answers
configuration to disable "Retype new password" in RHEL/CentOS
Is there a configuration setting in RHEL/CentOS thru which "Retype new password" can be disabled while changing user password.
Thanks.
HarbS
- 1
- 1
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votes
2 answers
How to make a user that runs an interactive script on login and then logout?
I have a small elif script that has 4 options. I will need to make a user that has permissions to run just that script on login and when it finishes with the script to log him out.
I am trying to do it trough /etc/passwd like…
0
votes
2 answers
Is there a way to only edit the GID on /etc/passwd file using chef?
Can we use a Chef resource to change the GID from 101 to 100(or any other number) in /etc/passwd file?libuuid:x:100:101::/var/lib/libuuid:
For all the GID's with 101 in /etc/passwd if one needs to change the GID, what is the way to do it using Chef…
blueowl
- 35
- 6
0
votes
1 answer
faillock marks correct password as wrong on RHEL6
I've been having a mysterious problem of being unable to login to my root account via SSH or Console. This is a real physical machine, not a VM. Luckily I still have a sudo user to experiment with.
RHEL6
$ su root from another user works fine, so…
KrNeki
- 135
- 8
0
votes
1 answer
How to skip new lines for comparison in python?
I have a python code which compare 2 text file and show if they have differences. first of all i sort files then remove their spaces that are at the end of text after sort then do the comparison.
#!/usr/bin/env python
import difflib
from pathlib…
BlackCrystal
- 127
- 1
- 11
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4 answers
How to programmatically change password for a user without interactive prompt in Python?
I'm trying to change the password for user foo with user bar by calling a shell command. But I have some problems.
I can do this to send a password to sudo
$ echo sudopw | sudo -S ls
And this to change password:
$ echo foo:newpw | sudo…
klutt
- 30,332
- 17
- 55
- 95
0
votes
2 answers
Script to change root password authenticating with password enabled sudo account
I want to change root password of multiple server's. I used shell with for loop and chpasswd utility to do this. Since the sudo account is password enabled, it is prompting sudo password all the time I exit script.
Below is bash Script is written in…
Paul Jany Godwin
- 9
- 3
0
votes
2 answers
Regex for lines from /etc/passwd and /etc/group
I've been working on a small Java problem set and have come across some trouble. I'm not very experienced writing regular expressions and could really use two for verifying line entries in /etc/group and /etc/passwd in Java.
I found Regex…
