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df command

UNIX Disk Usage Command Examples

How do I find out disk usage under UNIX operating systems using GUI, CLI and Perl / shell programs?
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CentOS / Redhat: Chroot And Mount Raid Or Actual Hard Disk From Rescue Kernel / CD

Something is wrong with my RHEL networking configuration so I booted using my ISPs remote rescue kernel mode to fix my system. How do I mount and chroot into actual installation to fix the problem? How do I boot from any Live Linux CD and chroot into /dev/sda1 or /dev/md0 to fix the problem or recover the data?
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Ubuntu: Mount Encrypted Home Directory (~/.private) From an Ubuntu Live CD

Recently my old desktop system crashed and I brought a new Ubuntu Laptop from Dell. To access my data from old hdd; I've attached my desktop harddisk using an external USB case. Now my old data is stored using external USB hard disk. How do I recover data from encrypted ~/.private home directory using an Ubuntu Live CD and copy it to existing laptop drive using known passphrase?
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See Filesystems In Linux

How do I see filesystem status in Linux?
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FreeBSD Move /usr or /var File System To Another Hard Disk

My current /usr file system was full, so I ended up adding a new disk to my FreeBSD server. I've created a new partition at /dev/ad6s1 (size is 250G). How do I move my /usr file system over to my huge new disk at /dev/ad6s1?
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Linux / UNIX: Create Large 1GB Binary Image File With dd Command

How do I create 1 GB or 10 GB image file instantly with dd command under UNIX / Linux / BSD operating systems using a shell prompt?
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Linux: How Do I Create a New ext3 File System If a Disk Was Added To The Server / Desktop?

Q. How Do I Create a New ext3 File System If a Disk Was Added To The Server / Desktop Under Any Linux Operating Systems?
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Linux / Unix: Checking Free Disk Space

How do I check free disk space in Linux or UNIX operating system? I've migrated from Windows NT to Linux and looking forward to get more information about free disk space on a Unix-like systems using command line.
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Howto Find Out or Learn Harddisk Size in Linux or UNIX

How do I find out my installed hard disk size in Linux or UNIX like operating systems?
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How To: Unmount an ISO Image in Linux

I know how to mount an iso image under Linux. But, how do I unmount the same under Linux?
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