bash-awk.sh

#!/bin/bash

#
#  processSfdisk() processes the output of sfdisk -d
#  and creates a new sfdisk -d like output, applying
#  the requested action.  Read below to see the actions
#
# $1 the name of a file that is the output of sfdisk -d
# $2 is the action "resize|other?"
# $3 is the first parameter
# $4 is the second parameter
# ...
#
# actions:
# processSfdisk foo.sfdisk resize /dev/sda1 100000
#	foo.sfdisk = sfdisk -d output
#	resize = action
#	/dev/sda1 = partition to modify
#	100000 = 1024 byte blocks size to make it
#	output: new sfdisk -d like output
#
# processSfdisk foo.sfdisk move /dev/sda1 100000
#	foo.sfdisk = sfdisk -d output
#	move = action
#	/dev/sda1 = partition to modify
#	100000 = 1024 byte blocks size to move it to
#	output: new sfdisk -d like output
#
# processSfdisk foo.sfdisk filldisk /dev/sda 100000 1:3:6
#	foo.sfdisk = sfdisk -d output
#	filldisk = action
#	/dev/sda = disk to modify
#	100000 = 1024 byte blocks size of disk
#	1:3:6 = partition numbers that are fixed in size, : separated
#	output: new sfdisk -d like output
#
# example file data	   
# /dev/sda1 : start=	 2048, size=   204800, Id= 7, bootable
# /dev/sda2 : start=   206848, size= 50573312, Id= 7
# /dev/sda3 : start= 50780160, size=	 2048, Id=83
# /dev/sda4 : start= 50784254, size= 16322562, Id= 5
# /dev/sda5 : start= 50784256, size=  7811072, Id=83
# /dev/sda6 : start= 58597376, size=  8509440, Id=82
#
data=$1

minstart=`awk -F'[ ,]+' '/start/{if ($4) print $4}' $data | sort -n | head -1`;
chunksize="2048";

awkArgs="-v CHUNKSIZE=$chunksize -v MIN_START=$minstart"
awkArgs="${awkArgs} -v action=$2 -v target=$3 -v sizePos=$4"

# Optional argument
if [ -n "$5" ]; then
	awkArgs="${awkArgs} -v fixedList=$5"
fi

# Process with external awk script
/usr/share/fog/lib/procsfdisk.awk $awkArgs $data