clear/delete log from 'last' or 'lastlog' command Post: 302350745

10 More Discussions You Might Find Interesting

1. AIX

Can't clear error log

Hi errclear seems not working on aix 4.3/rs6k, i can't clear HW error with errclear -d H 0 ??? what is wrong ? thanks.

2. UNIX for Dummies Questions & Answers

Hi All I'm currently writing a very simple UNIX script to process some work. The very first thing I do on my script is use the "clear" command. how my file looks... clear echo "Return status: $?" For some strange reason, the return status being returned is 1, not 0 as i expected. ...

3. UNIX for Advanced & Expert Users

Clear log file in use.

Hai, I have a program which updates the result in a log file, as the program runs 24*7,the size of log file keeps on increasing. Can you help me with a shell command which will clear the content of a log file in use. 1) I tried tail -10 logfile > logfile ( the content is not changed ) 2) >...

4. UNIX for Dummies Questions & Answers

What command do you use to clear the print que?

Hi, I have a user that has tried to print a job several times and has now filled up the que. How do i delete all the jobs in the que and what is the command?:confused:

5. UNIX for Dummies Questions & Answers

command not clear

hi, i have an unix command which is as follows: ctmfw /work/CDFC/landing/ZORC.txt CREATE 0 60 1 10 240 I think a txt file called ZORC gets created in the mentioned directory, i am not sure what 0 60 1 10 240 is. Is my understanding correct and also let me know what those numbers denote?...

6. Solaris

how to clear command history

hi Any one can help me. I am using Sun_Solaris. The command history set to 100 at .cshrc. I am unable to clear the command histoy. In Linux it is very easy by giving command history -c I could not find any such type command to clear the history. Is there any such type of command for solaris....

7. Shell Programming and Scripting

Clear Screen Command for BASH shell

I am unable to use clear or cls command on bash shell. I have recently installed Cygwin and am using that for practicing unix commands. I see that I can use Ctrl + L to clear the screen. I created an alias in my .bashrc to do the same as alias cls='^L' This is how i defined other aliases ...

8. UNIX for Dummies Questions & Answers

Unix : About options of clear command ?

Hello everyone, My question is quite simple, even if I didn't find an answer. I would want a command (maybe clear with some options ?) that can do the following : clear completely the console, as it is when we start a console for the first time. My problem is that I sometimes display a lot...

9. Shell Programming and Scripting

clear command issue

I need to clear the screen after each iteration but i cannot place clear where it needs to go to do that. I just keep clearing the screen before i can even see the choice I make. HWfile=~/home/daftdave/HW2 loop=y while do tput cup 2 15 ; echo "File Menu List" ...

10. Shell Programming and Scripting

Clear command help & alias

Hi Folks, When I type clear on my unix prompt on mac terminal, it prints the help menu of a program instead of cleaning the contents of the screen. Also, I have used the following alias command to setup some shortcuts, but soon after I logout and login, these shortcuts doesn't work. alias...

LEARN ABOUT LINUX

lastlog

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)

10 More Discussions You Might Find Interesting

1. AIX

Can't clear error log

Discussion started by: andryk

2. UNIX for Dummies Questions & Answers

Problem with clear command

Discussion started by: djkane

3. UNIX for Advanced & Expert Users

Clear log file in use.

Discussion started by: coolbhai

4. UNIX for Dummies Questions & Answers

What command do you use to clear the print que?

Discussion started by: nov_user