mkpasswd(8) System Manager's Manual mkpasswd(8)Name
mkpasswd - generate hashed password table
/etc/mkpasswd [-uv] passwdfile
The command is used to generate the hashed password database used by the library routines and
If the -u option is present the hashed files will not be built unless they already exist. In any case, the hashed files will not be built
if the time of last modification of the passwdfile is less recent than that of an existing hashed files.
If the -v option is supplied, each entry will be listed as it is added.
The file passwdfile is usually and must be in the format of The command will generate database files named passwdfile.pag and passwd-
file.dir. The command will exit with a non-zero exit code if any errors are detected. Otherwise it will print the number of entries pro-
cessed and the length of the longest entry.
The presence of the hashed files is optional. They are not required for correct operation of or but will improve their performance on sys-
tems with moderate to large sized files.
The data base is already up to date.
If the specified file has been modified less recently than the hashed files.
Database not created.
When used with the -u option and the database does not already exist.
passwdfile.dir Database filename
passwdfile.pag Database filename
See Alsogetpwent(3), passwd(5), vipw(8)mkpasswd(8)
Check Out this Related Man Page
vipw(8) System Manager's Manual vipw(8)NAME
vipw - Edits the /etc/passwd file
You use the vipw command to edit the /etc/passwd file with the editor defined in the EDITOR environment variable. If the variable is not
set, the default editor is vi.
The vipw command performs basic consistency checks on the edited file. If a hashed indexed passwd existed previously, the vipw command
uses the mkpasswd command to create recreate it.
The command must not be used on systems that use extended security attributes since it cannot set or change them. You must be root to run
this command. Only root and security administrators should have execute access to this command.
Since the vipw command cannot effectively change all the attributes of users, it should not be used in a secure environment.
The vipw command accesses the following files, and requires the listed permissions:
To edit the /etc/passwd file, type the following command and add the required line entry: vipw
Specifies the command path
Commands: passwd(1), passwd(4), adduser(8), mkpasswd(8) delim off
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