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Thursday, December 4, 2008

Useful Linux commands

When I was installing Oracle 11g database I found some useful Linux commands. I here summarized what I learnt there. For further details refer to Oracle 11g database Linux installation guide.

To determine physical RAM size

grep MemTotal /proc/meminfo

To get the system architecture

grep "model name" /proc/cpuinfo

To determine the size of the configured swap space

grep SwapTotal /proc/meminfo

To get available ram and swap space

free

Determine the distribution and version

cat /proc/version

To find the kernel version

uname -r


To find size of folders or files,

du -h


To determine required packages are installed

rpm -q package_name

To find free disk space of the system

df -k

If it need to extend the search to a directory

df -k /path_to_folder_name


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