LASTLOG(8) System Management Commands LASTLOG(8)NAME
lastlog - reports the most recent login of all users or of a given user
SYNOPSIS
lastlog [options]
DESCRIPTION
lastlog formats and prints the contents of the last login log /var/log/lastlog file. The login-name, port, and last login time will be
printed. The default (no flags) causes lastlog entries to be printed, sorted by their order in /etc/passwd.
OPTIONS
The options which apply to the lastlog command are:
-b, --before DAYS
Print only lastlog records older than DAYS.
-h, --help
Display help message and exit.
-t, --time DAYS
Print the lastlog records more recent than DAYS.
-u, --user LOGIN|RANGE
Print the lastlog record of the specified user(s).
The users can be specified by a login name, a numerical user ID, or a RANGE of users. This RANGE of users can be specified with a min
and max values (UID_MIN-UID_MAX), a max value (-UID_MAX), or a min value (UID_MIN-).
If the user has never logged in the message ** Never logged in** will be displayed instead of the port and time.
Only the entries for the current users of the system will be displayed. Other entries may exist for users that were deleted previously.
NOTE
The lastlog file is a database which contains info on the last login of each user. You should not rotate it. It is a sparse file, so its
size on the disk is usually much smaller than the one shown by "ls -l" (which can indicate a really big file if you have in passwd users
with a high UID). You can display its real size with "ls -s".
FILES
/var/log/lastlog
Database times of previous user logins.
CAVEATS
Large gaps in UID numbers will cause the lastlog program to run longer with no output to the screen (i.e. if in lastlog database there is
no entries for users with UID between 170 and 800 lastlog will appear to hang as it processes entries with UIDs 171-799).
System Management Commands 06/24/2011 LASTLOG(8)
Check Out this Related Man Page
llconvert(8) System Manager's Manual llconvert(8)NAME
llconvert - Modify lastlog records from DIGITAL UNIX releases 4.0x and prior to new format
SYNOPSIS
/usr/lbin/llconvert [-vnrp?h] input_file [output_file]
OPTIONS
Restore new format to old format. Verbose. Display lines while converting. Do not preserve contents of input file. Formatted print only.
Do not convert. (May be used with the -r option). Display usage message.
DESCRIPTION
The llconvert command reads records from the lastlog file, such as /var/adm/lastlog, and converts the record format to the updated struct
lastlog format. If no output file is specified or if the output file path is identical to the input file path, llconvert makes a backup
copy of the original input file using the following algorithm: If filename.orig exists. Where n is a unique number.
The llconvert command attempts to detect an input file that is in the wrong format (for example, input file is already a new format file).
A warning message is issued in this case, but conversion continues.
RETURN VALUES
Success. An error occurred.
EXAMPLES
To convert an old format accounting file to the new format: llconvert /var/adm/lastlog.prev
Upon completion of this command, /var/adm/lastlog.prev will have been converted to the new format. The original /var/adm/last-
log.prev is renamed to:
/var/adm/lastlog.prev.orig To convert a lastlog file in new format to the old format: llconvert -r /var/adm/lastlog /var/adm/last-
log.old
FILES
Lastlog header file that defines the format for the lastlog file. The active lastlog file.
SEE ALSO
Commands: finger(1)llconvert(8)
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