#basic unix

Basic File Navigation: df command in Linux provides disk space usage information of your file systems.$ df –h (in human readable format) [oracle@db-uat trace]$ df -hFilesystem Size Used Avail Use% Mounted ondevtmpfs 16G 0 16G 0% /devtmpfs 16G 12K 16G 1% /dev/shmtmpfs 16G 258M 16G 2% /runtmpfs 16G 0 16G 0% /sys/fs/cgroup/dev/mapper/OSVG-rootlv 10G 253M 9.8G 3% //dev/mapper/OSVG-usrlv 30G 5.4G…

Getting Started with Unix

Some prerequisites about terminals and typing:

We assume you have some familiarity with computer terminals and how to use them.

The Unix system is full duplex: the characters you type on the keyboards are sent to the system, which sends them back the terminal to be printed on the screen. Normally, this echo process copies the characters directly to the screen, so you can see what you are typing,…