Hi all,

I have a log file name abc.log which contain my computer cpu usage:


0.0 rpc portmap
0.0 root xinetd -stayalive -pidfile /var/run/xinetd.pid
0.0 root /usr/sbin/sshd
0.0 root /usr/sbin/automount --timeout=60 /misc file /etc/auto.misc
0.0 root /usr/sbin/atd
0.0 root syslogd -m 0
0.0 root sshd: root@pts/0
0.0 root sort -rn
0.0 root sendmail: accepting connections
0.0 root /sbin/mingetty tty6
0.0 root /sbin/mingetty tty5
0.0 root /sbin/mingetty tty4
0.0 root /sbin/mingetty tty3
0.0 root /sbin/mingetty tty2
0.0 root [rpciod]
0.0 root ps -e -o pcpu -o ruser,args
0.0 root [mdrecoveryd]
0.0 root mdadm --monitor --scan -f
0.0 root [lockd]
0.0 root [kupdated]
0.0 root [kswapd]
0.0 root [ksoftirqd/0]
0.0 root [kscand]
0.0 root klogd -x
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [kjournald]
0.0 root [khubd]
0.0 root [keventd]
0.0 root [kapmd]
0.0 root init
0.0 root gpm -t imps2 -m /dev/mouse

so now, i would like to grep for the range of number 80.00 to 100.00. hence my command is as below:
cat abc.log | grep -i "[8-9][0-9].[0-9][0-9]"
cat abc.log | grep -i 100.00
but strangely, the return result is not very accurate.

can kindly advice?

thanks

Your data contain only one decimal point, and just in case you have a number between 80 and 100 in the command args I suggest you execute
egrep "^100.0|^[8-9][0-9].[0-9]" abc.log

sorry for the error in my typing.
the command should be cat abc.log | grep -i "[8-9][0-9].[0-9], and the result is not accurate previously.

but now, i follow your guide by putting ^, and it's work. thanks!!