What's the command to find out if PAE is enabled ?
How to get the amount of RAM memory my linux 32 bit sees ? If I use free / top it reports the whole physical memory which exceeds the 32 bit limitations .
Scenario:
- Linux machine ;
- I need to "monitor" my processes: need to find every processes that is consuming >80% CPU over 20 seconds, and write the process info into a log .
Is there already a solution for this, or I'll write my own script ? I've already have a small script, but I wanted to know If i can find something more advanced .
Using:
Linux nomemory 2.6.32-24-generic #43-Ubuntu SMP Thu Sep 16 14:17:33 UTC 2010 i686 GNU/Linux
I have a folder in my $HOME called ~/.scriptfarm/scripts where i keep some of my custom scripts.
nomemory@nomemory:~$ ls -l /home/nomemory/.scriptfarm/script
total 20
-rwxr-xr-x 1 nomemory nomemory 10 2010-09-21 01:31 aaa
-rwxr-xr-x 1 nomemory nomemory 31 2010-09-21 00:47 pt.chc
-rwxr-xr-x 1 nomemory nomemory 35 2010-09-21 00:47 pt.int
-rwxr-xr-x 1 nomemory nomemory 34 2010-09-21 00:47 pt.rem
-rwxr-xr-x 1 nomemory nomemory 54 2010-09-21 00:47 pt.up
The problem is that in Ubuntu none of the scripts are working when prefixed with sudo. The behavior is different on Arch, where the scripts are working.
Let me give you an example (aaa is a foobar-type script):
nomemory@nomemory:~$ aaa
aaa
nomemory@nomemory:~$ sudo aaa
sudo: aaa: command not found
nomemory@nomemory:~$
And if a echo $PATH:
nomemory@nomemory:~$ sudo echo $PATH
/home/nomemory/.scriptfarm/script:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
Do you know why my scripts don't work if I prefix them with sudo.
Any solutions ?
Later edit:
The work-around I found was to add an alias for sudo: sudo env PATH=$PATH $@ .