Few Basic Linux Commands 1 - Linux

Few Basic Linux Commands:

Here I'm giving few linux commands, which will be useful to them who are newly started working on Linux.

1. To get OS version etc..

# lsb_release -a

or

#cat /etc/redhat-release

2. Networking commands:

    2.1 To make eth2 up:

           #ifconfig eth2 up

    2.2 To assign IP to eth2

           # setup

   or

           #ifconfig eth2 [IP Address]

   then

           #ifconfig eth2 [netmask]

3. Command to check Server Model in Linux

   #dmidecode |grep -i -A3 "system information"

4. To scan new luns:

    1. #cd /sys/class/scsi_host/

    2. #echo ""- - -" > /sys/class/scsi_host/host0/scan

for host1

    3. #echo ""- - -" > /sys/class/scsi_host/host1/scan

5. Command  to check open or listening port

    #netstat -nat | grep LISTEN  ;  netstat -a | grep "telnet.*LISTEN"

Thanks...

Kiran Jadhav

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