NAME
pwconv − installs and updates /etc/shadow with information from /etc/passwd
SYNOPSIS
pwconv
DESCRIPTION
The pwconv command creates and updates /etc/shadow with information from /etc/passwd.
pwconv relies on a special value of ’x’ in the password field of /etc/passwd. This value of ’x’ indicates that the password for the user is already in /etc/shadow and should not be modified.
If the /etc/shadow file does not exist, this command will create /etc/shadow with information from /etc/passwd. The command populates /etc/shadow with the user’s login name, password, and password aging information. If password aging information does not exist in /etc/passwd for a given user, none will be added to /etc/shadow. However, the last changed information will always be updated.
If the /etc/shadow file does exist, the following tasks will be performed:
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Entries that are in the /etc/passwd file and not in the /etc/shadow file will be added to the /etc/shadow file. | |
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Entries that are in the /etc/shadow file and not in the /etc/passwd file will be removed from /etc/shadow. | |
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Password attributes (for example, password and aging information) that exist in an /etc/passwd entry will be moved to the corresponding entry in /etc/shadow. |
The pwconv command can only be used by the super-user.
FILES
/etc/opasswd
/etc/oshadow
/etc/passwd
/etc/shadow
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
SEE ALSO
passwd(1), passmgmt(1M), usermod(1M), passwd(4), attributes(5)
DIAGNOSTICS
pwconv exits with one of the following values:
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0 |
SUCCESS. |
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1 |
Permission denied. |
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2 |
Invalid command syntax. |
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3 |
Unexpected failure. Conversion not done. |
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4 |
Unexpected failure. Password file(s) missing. |
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5 |
Password file(s) busy. Try again later. |
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6 |
Bad entry in /etc/shadow file. |