gistfile1.sh

#!/bin/bash
#
# here is an original code:
# http://serverfault.com/questions/173999/dump-a-linux-processs-memory-to-file
#
function extract_memory_region()
{
    pid=$1
    grep rw-p /proc/${pid}/maps | sed -n 's/^\([0-9a-f]*\)-\([0-9a-f]*\) .*$/\1 \2/p'
}

function gdb_dump_memory()
{
    pid=$1
    start=$2
    end=$3
    gdb --batch --pid ${pid} -ex "dump memory ${pid}-$start-$stop.dump 0x$start 0x$stop"
}

pid=$1

if [ "$pid" = "" ]; then
    echo "[usage] $0 <pid>"
    exit 1
fi

extract_memory_region $pid | while read start stop
do
    gdb_dump_memory $pid $start $end
done