Shell Programming and Scripting

>>mfdisk -h
Partition table manipulator for BUFFALO INC. LinkStation series. ver 2.0, Nov  5
 2005
Usage: mfdisk DISK     Create partition tables for HD-LAN ver 1.xx
       mfdisk -f DISK  Create partition tables for HD-LAN ver 2.xx
       mfdisk -h DISK  Create partition tables for HD-HLAN
       mfdisk -g [1:2:3:5:10:20:50] DISK  Create partition tables
       mfdisk -a DISK  Create partition table for HD-HLAN's USB Disk
       mfdisk -c DISK  Create partition table(s) with menu
       mfdisk -p DISK  Check partition table(s)
       mfdisk -e DISK  Deleate all partition tables
       mfdisk -d [1:2:3:4:5:6:7] DISK  Create partition tables for LinkStation/T
eraStation
Here DISK is something like /dev/hda or /dev/sda
>>
>>
>>mfdisk -c /dev/sda
Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
Command (m for help):

mfdisk -h << EEOOFF
m
EEOOFF

$ fdisk -h                        
Usage: fdisk                                  
[ -A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]
[ -b masterboot ]                                            
[ -D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]
[ -F fdisk_file ] [ -h ] [ -o offset ] [ -P fill_patt ] [ -s size ]
[ -S geom_file ] [ [ -v ] -W { creat_fdisk_file | - } ]            
[ -w | r | d | n | I | B | E | g | G | R | t | T ] rdevice         
    Partition options:                                             
        -A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect  
                Create a partition with specific attributes:       
                id      = system id number (fdisk.h) for the partition type
                act     = active partition flag (0 is off and 128 is on)   
                bhead   = beginning head for start of partition            
                bsect   = beginning sector for start of partition          
                bcyl    = beginning cylinder for start of partition        
                ehead   = ending head for end of partition                 
                esect   = ending sector for end of partition               
                ecyl    = ending cylinder for end of partition             
                rsect   = sector number from start of disk for             
                          start of partition                               
                numsect = partition size in sectors                        
        -b master_boot                                                     
                Use master_boot as the master boot file.                   
        -B      Create one Solaris partition that uses the entire disk.    
        -E      Create one EFI partition that uses the entire disk.        
        -D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect          
                Delete a partition. See attribute definitions for -A.      
        -F fdisk_file                                                      
                Use fdisk_file to initialize on-line fdisk table.          
        -I      Forego device checks. Generate a file image of what would go
                on a disk using the geometry specified with the -S option.  
        -n      Do not run in interactive mode.                             
        -R      Open the disk device as read-only.                          
        -t      Check and adjust VTOC to be consistent with fdisk table.    
                VTOC slices exceeding the partition size will be truncated. 
        -T      Check and adjust VTOC to be consistent with fdisk table.    
                VTOC slices exceeding the partition size will be removed.   
        -W fdisk_file                                                       
                Write on-disk table to fdisk_file.                          
        -W -    Write on-disk table to standard output.                     
        -v      Display virtual geometry. Must be used with the -W option.  
    Diagnostic options:                                                     
        -d      Activate debug information about progress.                  
        -g      Write label geometry to standard output:                    
                PCYL            number of physical cylinders                
                NCYL            number of usable cylinders
                ACYL            number of alternate cylinders
                BCYL            cylinder offset
                NHEADS          number of heads
                NSECTORS        number of sectors per track
                SECTSIZ         size of a sector in bytes
        -G      Write physical geometry to standard output (see -g).
        -h      Issue this verbose help message.
        -o offset
                Block offset from start of disk (default 0). Ignored if
                -P # specified.
        -P fill_patt
                Fill disk with pattern fill_patt. fill_patt can be decimal or
                hexadecimal and is used as number for constant long word
                pattern. If fill_patt is "#" then pattern of block #
                for each block. Pattern is put in each block as long words
                and fills each block (see -o and -s).
        -r      Read from a disk to stdout (see -o and -s).
        -s size Number of blocks on which to perform operation (see -o).
        -S geom_file
                Use geom_file to set the label geometry (see -g).
        -w      Write to a disk from stdin (see -o and -s).