Useful Unix Command for Oracle DBA.
CPU How many CPU has your server : mpstat | tail +2 | wc -l uname -X | grep CPU Details about CPU : psrinfo -v kstat cpu_info Number of cores : kstat cpu_info | egrep core_id | awk '{ print $2}' | uniq | wc -l Use of CPU : prstat -a prstat -U OracleUser Old fashion version of top ten of CPU consumer : /usr/ucb/ ps auxwww | head -11 How many bit: 32 or 64? /bin/ isainfo -kv Memory Memory Size Server /usr/sbin/ prtconf | grep "Memory size" Free Memory /usr/bin/ vmstat 1 2| tail -1 | awk '{ print "Free Memory: " $5/1024 , "MB" }' Disk I/O Displays the amount of used and available space df -h Displays the amount of used and available inodos df -o i . Blocksize filesystem df -g .