Shell Programming and Scripting

hi friends,
ım new in shell scripting and ı want to know that which commands gives the booting times in fixed time interval(day) ı have entered.
For Example,
When ı enter 4 for command,
Command will return the booting times in last 4 days.
Thank for your helps!!!

There is no single command in any unix or Linux Operating System which will give you this information.

In some Operating Systems this is easy and in some Operating Systems this is impossible.

What Operating System do you have?
What Shell do you prefer?

I don't understand what you mean by booting times.

The uptime command tells you how long it has been since the system booted (i.e. how long it has been up).

Or do you mean you want to know what commands have been run in the last 4 days?
The history doesn't give you exactly that, but it may be helpful.
Try something like this:

Code:

history | grep ls

Code:

who -b
uptime

are tow possible commands. The information is stored in either wtmp or wtmpx - usually in var/adm/[filename]. Previous boot times may or may not be there.

None of the above will give you the recent boot history of a unix server.
"who -b" and "uptime" refer to utmp which contains only the current boot.

Please answer post #2 .

Im using Ubuntu. My aim is just to list boot times in time interval which ı have entered. Can ı specialize last command? I can list boot times by using last command but as ı said ı want to see boot times in last 3 days for example.
Thank for your helps...

probably we are at the same class with this guy. he is trying to say this problem..

(20 pts) Write a shell script which includes a single argument which is a number.
Then, it will show the number of times that the computer was booted during last “number” of days
(including today).
Hint: This information is recorded somewhere in your system.
$myprog3 3
13/10/2010 booted 5 times
12/10/2010 booted 2 times
11/10/2010 booted 0 times

I solved the problem with my way. I took into array "last reboot" command. and i got the the day and month lines into process. than checked them how many times repeated and to limit the input counter, i checked today "%d" .

"kolay gele.."