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How to set user passwords using passwd without a prompt?
Bash script to automaticly change a given user's passwordHow to change password using usermod?How to change passwords in bulk? Ubuntu 16.04Problem running Linux Bash Script and adding password same as usernameSet another password automatically every day for a user sessionHow to setup a list of users using bashWhy am I not asked for password at startup?How to login into Ubuntu after an upgrade to 12.04?chpasswd silently fails to do anything; is there a substitute?How to configure pkexec to not ask for password?Default sudo settings did not require passwordChange expired password via sshUbuntu Keyring on Library Public ComputersCannot change password using passwdOS “Forgets” User PasswordsBash script to automaticly change a given user's password
I am writing a script to add a large amount of users to a system. Part of this involves setting default passwords for each user. How can I set users' passwords without it prompting me for the password up front?
Unfortunately passwd doesn't seem to take an argument stating the new password to set. I'm using Ubuntu 11.10.
password
edited Apr 1 '16 at 4:09
muru
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
add a comment |
I am writing a script to add a large amount of users to a system. Part of this involves setting default passwords for each user. How can I set users' passwords without it prompting me for the password up front?
Unfortunately passwd doesn't seem to take an argument stating the new password to set. I'm using Ubuntu 11.10.
password
edited Apr 1 '16 at 4:09
muru
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
add a comment |
I am writing a script to add a large amount of users to a system. Part of this involves setting default passwords for each user. How can I set users' passwords without it prompting me for the password up front?
Unfortunately passwd doesn't seem to take an argument stating the new password to set. I'm using Ubuntu 11.10.
password
edited Apr 1 '16 at 4:09
muru
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
I am writing a script to add a large amount of users to a system. Part of this involves setting default passwords for each user. How can I set users' passwords without it prompting me for the password up front?
Unfortunately passwd doesn't seem to take an argument stating the new password to set. I'm using Ubuntu 11.10.
password
password
edited Apr 1 '16 at 4:09
muru
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
edited Apr 1 '16 at 4:09
muru
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
edited Apr 1 '16 at 4:09
muru
1
edited Apr 1 '16 at 4:09
muru
1
edited Apr 1 '16 at 4:09
muru
1
1
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
asked Nov 18 '11 at 11:06
Jake PetroulesJake Petroules
183116
183116
add a comment |
add a comment |
4 Answers
4
active
oldest
votes
Try usermod:
usermod --password PASSWORD USERNAME
The only thing is this needs a pre-encrypted password string which you'd have to generate first.
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
You can also use openssl to generate the encrypted password. For example:usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME
– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:usermod --password $(openssl passwd -1 password) username
– BoCoKeith
Nov 29 '18 at 15:36
add a comment |
You should look at the chpasswd command (if available in your linux flavor):
echo 'userid:newpasswd' | chpasswd
Or, you can cat a file listing userid:passwd for each account on a separate line.
That's it.
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
this worked for me inDockerfile
– Vishrant
Jan 27 at 18:58
add a comment |
Inspired by Eric Smith's idea, combining openssl passwd and usermod -p command worked. Generate hashed value of password along with salt value.
$ openssl passwd -1 -salt 5RPVAd clear-text-passwd43
$1$5RPVAd$vgsoSANybLDepv2ETcUH7.
Then, copy the encrypted string to usermod. Make sure to wrap it with single quote.
$ usermod -p '$1$5RPVAd$vgsoSANybLDepv2ETcUH7.' root
Check it out in shadow file.
$ grep root /etc/shadow
root:$1$5RPVAd$vgsoSANybLDepv2ETcUH7.:17774:0:99999:7:::
edited 1 hour ago
nyg
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
add a comment |
You should use password aging, and set the users so that they must change their password on the first login. See this article.
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
Try usermod:
usermod --password PASSWORD USERNAME
The only thing is this needs a pre-encrypted password string which you'd have to generate first.
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
You can also use openssl to generate the encrypted password. For example:usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME
– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:usermod --password $(openssl passwd -1 password) username
– BoCoKeith
Nov 29 '18 at 15:36
add a comment |
Try usermod:
usermod --password PASSWORD USERNAME
The only thing is this needs a pre-encrypted password string which you'd have to generate first.
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
You can also use openssl to generate the encrypted password. For example:usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME
– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:usermod --password $(openssl passwd -1 password) username
– BoCoKeith
Nov 29 '18 at 15:36
add a comment |
Try usermod:
usermod --password PASSWORD USERNAME
The only thing is this needs a pre-encrypted password string which you'd have to generate first.
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
Try usermod:
usermod --password PASSWORD USERNAME
The only thing is this needs a pre-encrypted password string which you'd have to generate first.
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
answered Nov 18 '11 at 11:18
CaesiumCaesium
11.6k33147
11.6k33147
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
You can also use openssl to generate the encrypted password. For example:usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME
– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:usermod --password $(openssl passwd -1 password) username
– BoCoKeith
Nov 29 '18 at 15:36
add a comment |
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
You can also use openssl to generate the encrypted password. For example:usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME
– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:usermod --password $(openssl passwd -1 password) username
– BoCoKeith
Nov 29 '18 at 15:36
1
1
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
...which I can generate using mkpasswd. Excellent, thanks!
– Jake Petroules
Nov 18 '11 at 11:27
13
13
You can also use openssl to generate the encrypted password. For example:
usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME– Eric Smith
Jan 16 '15 at 19:34
You can also use openssl to generate the encrypted password. For example:
usermod --password $(echo my_new_password | openssl passwd -1 -stdin) USERNAME– Eric Smith
Jan 16 '15 at 19:34
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:
usermod --password $(openssl passwd -1 password) username– BoCoKeith
Nov 29 '18 at 15:36
Three years too late. I couldn't make the answer @EricSmith, but I did discover a simpler version of the command that did work:
usermod --password $(openssl passwd -1 password) username– BoCoKeith
Nov 29 '18 at 15:36
add a comment |
You should look at the chpasswd command (if available in your linux flavor):
echo 'userid:newpasswd' | chpasswd
Or, you can cat a file listing userid:passwd for each account on a separate line.
That's it.
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
this worked for me inDockerfile
– Vishrant
Jan 27 at 18:58
add a comment |
You should look at the chpasswd command (if available in your linux flavor):
echo 'userid:newpasswd' | chpasswd
Or, you can cat a file listing userid:passwd for each account on a separate line.
That's it.
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
this worked for me inDockerfile
– Vishrant
Jan 27 at 18:58
add a comment |
You should look at the chpasswd command (if available in your linux flavor):
echo 'userid:newpasswd' | chpasswd
Or, you can cat a file listing userid:passwd for each account on a separate line.
That's it.
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
You should look at the chpasswd command (if available in your linux flavor):
echo 'userid:newpasswd' | chpasswd
Or, you can cat a file listing userid:passwd for each account on a separate line.
That's it.
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
edited Jan 2 '14 at 21:22
Eric Carvalho
42.2k17115147
42.2k17115147
answered Jan 2 '14 at 21:02
AllanAllan
9111
answered Jan 2 '14 at 21:02
AllanAllan
9111
answered Jan 2 '14 at 21:02
AllanAllan
9111
9111
this worked for me inDockerfile
– Vishrant
Jan 27 at 18:58
add a comment |
this worked for me inDockerfile
– Vishrant
Jan 27 at 18:58
this worked for me in
Dockerfile– Vishrant
Jan 27 at 18:58
this worked for me in
Dockerfile– Vishrant
Jan 27 at 18:58
add a comment |
Inspired by Eric Smith's idea, combining openssl passwd and usermod -p command worked. Generate hashed value of password along with salt value.
$ openssl passwd -1 -salt 5RPVAd clear-text-passwd43
$1$5RPVAd$vgsoSANybLDepv2ETcUH7.
Then, copy the encrypted string to usermod. Make sure to wrap it with single quote.
$ usermod -p '$1$5RPVAd$vgsoSANybLDepv2ETcUH7.' root
Check it out in shadow file.
$ grep root /etc/shadow
root:$1$5RPVAd$vgsoSANybLDepv2ETcUH7.:17774:0:99999:7:::
edited 1 hour ago
nyg
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
add a comment |
Inspired by Eric Smith's idea, combining openssl passwd and usermod -p command worked. Generate hashed value of password along with salt value.
$ openssl passwd -1 -salt 5RPVAd clear-text-passwd43
$1$5RPVAd$vgsoSANybLDepv2ETcUH7.
Then, copy the encrypted string to usermod. Make sure to wrap it with single quote.
$ usermod -p '$1$5RPVAd$vgsoSANybLDepv2ETcUH7.' root
Check it out in shadow file.
$ grep root /etc/shadow
root:$1$5RPVAd$vgsoSANybLDepv2ETcUH7.:17774:0:99999:7:::
edited 1 hour ago
nyg
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
add a comment |
Inspired by Eric Smith's idea, combining openssl passwd and usermod -p command worked. Generate hashed value of password along with salt value.
$ openssl passwd -1 -salt 5RPVAd clear-text-passwd43
$1$5RPVAd$vgsoSANybLDepv2ETcUH7.
Then, copy the encrypted string to usermod. Make sure to wrap it with single quote.
$ usermod -p '$1$5RPVAd$vgsoSANybLDepv2ETcUH7.' root
Check it out in shadow file.
$ grep root /etc/shadow
root:$1$5RPVAd$vgsoSANybLDepv2ETcUH7.:17774:0:99999:7:::
edited 1 hour ago
nyg
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
Inspired by Eric Smith's idea, combining openssl passwd and usermod -p command worked. Generate hashed value of password along with salt value.
$ openssl passwd -1 -salt 5RPVAd clear-text-passwd43
$1$5RPVAd$vgsoSANybLDepv2ETcUH7.
Then, copy the encrypted string to usermod. Make sure to wrap it with single quote.
$ usermod -p '$1$5RPVAd$vgsoSANybLDepv2ETcUH7.' root
Check it out in shadow file.
$ grep root /etc/shadow
root:$1$5RPVAd$vgsoSANybLDepv2ETcUH7.:17774:0:99999:7:::
edited 1 hour ago
nyg
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
edited 1 hour ago
nyg
1033
edited 1 hour ago
nyg
1033
edited 1 hour ago
nyg
1033
1033
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
answered Aug 31 '18 at 21:29
Joon ByunJoon Byun
111
111
add a comment |
add a comment |
You should use password aging, and set the users so that they must change their password on the first login. See this article.
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
add a comment |
You should use password aging, and set the users so that they must change their password on the first login. See this article.
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
add a comment |
You should use password aging, and set the users so that they must change their password on the first login. See this article.
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
You should use password aging, and set the users so that they must change their password on the first login. See this article.
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
answered Nov 18 '11 at 21:37
waltinatorwaltinator
22.7k74169
22.7k74169
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
add a comment |
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
These intended to be FTP-only accounts, but good advice. ;)
– Jake Petroules
Nov 18 '11 at 22:49
add a comment |
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