Compile and install process accounting software.
The process accounting software package is available from http://sunsite.unc.edu/pub/Linux/system/admin/quota-acct-modified.tgz
Modify your system init script and turn on process accounting at boot time.
Here's an example:
# Turn process accounting on. if [ -x /sbin/accton ] then /sbin/accton /var/log/pacct echo "Process accounting turned on." fi
Create accounting record file "pacct."
Your process accounting software will print out all commands executed to the file /var/log/pacct by default.
To create the accounting record file:
This record file should be owned by root, and it has read-write permission for root and read permission for anybody else:
chown root /var/log/pacct chmod 0644 /var/log/pacct
Now reboot your system for changes you made to take effect.