I discussed about lsof and ps(process status) commands in the last blog post. I strongly recommend you to read earlier blogs for better understanding . If you find something missing, Please provide feedback in comment box so that I can take corrective action.
I will be using redirection wherever it requires.
How can I create a Filesystem from scratch ?
If we create partition table in the file image above, It will become virtual hard disk image. Loop device is a pseudo device which makes a filesystem appear as a block device. After mounting the filesystem, we can copy the required files inside this.
As I discussed earlier /dev directory nodes provide device access to user space application . However there is another directory /sys which provides device configuration and status specific information. /proc provides information related to kernel running status.