PAM_ISSUE(8) Linux-PAM Manual PAM_ISSUE(8)

pam_issue - PAM module to add issue file to user prompt [noesc] [issue=issue-file-name]

pam_issue is a PAM module to prepend an issue file to the username prompt. It also by default parses escape codes in the issue file similar to some common getty's (using \x format).

Recognized escapes:


current day


name of this tty


machine architecture (uname -m)


machine's network node hostname (uname -n)


domain name of this system


release number of operating system (uname -r)


current time


operating system name (uname -s)


number of users currently logged in


same as \u except it is suffixed with "user" or "users" (eg. "1 user" or "10 users")


operating system version and build date (uname -v)


Turns off escape code parsing.


The file to output if not using the default.

Only the auth module type is provided.


Memory buffer error.


The prompt was already changed.


A service module error occurred.


The new prompt was set successfully.

Add the following line to /etc/pam.d/login to set the user specific issue at login:

        auth optional issue=/etc/issue

pam.conf(5), pam.d(5), pam(8)

pam_issue was written by Ben Collins <>.

04/09/2024 Linux-PAM