Linux commands and tips
Posted on 07.Jul 2005 by Ray Heffer in Linux, Scripts & Commands, Tech Tips
Checking kernel & CentOS version
To check which kernel version you are running use uname -r
# uname -r
To find out which CentOS (or RedHat) release is installed have a look at /etc/redhat-release
# cat /etc/redhat-release
Checking Disk Space
To check disk space used / free use the df command and it will display each volume. The -h switch turns the bytes reading into GB to make it more readable.
# df -h
If you want to check the size of a particular directory then use:
# du -sh /
