some useful redhat commands

Check Main IP and aliases

watch /sbin/ifconfig

Check Physical/Virtual/Manufacturer/Serial

/usr/sbin/dmidecode | less

Check scheduled tasks

crontab -l

Check RedHat Version

cat /etc/redhat-release


How to check esx version
vmware -v
vimsh -n -e 'hostsvc/hostsummary' | grep fullName
cat /proc/vmware/version


Check Apache version
/usr/sbin/httpd -v


Detect Jboss version
ls -l /usr/jboss
ls /usr/ | grep jboss

Detect java version
java -version

Detect mysql version
mysql -V
"mysql  Ver 14.12 Distrib 5.0.45, for redhat-linux-gnu (i686) using readline 5.0"

Detect oracle
. oraenv
bct1
sqlplus "/ as sysdba"
select * from v$version where banner like 'Oracle%';

Detect f-prot version
/usr/local/f-prot/fpscan --versio