assert(getprop(“ro.product.device”) == “c8812″ || getprop(“ro.build.product”) == “c8812″ ||
getprop(“ro.product.device”) == “C8812″ || getprop(“ro.build.product”) == “C8812″ ||
getprop(“ro.product.device”) == “hwc8812″ || getprop(“ro.build.product”) == “hwc8812″ ||
getprop(“ro.product.device”) == “msm7627a” || getprop(“ro.build.product”) == “msm7627a”);
 
#这个是对于build.prop机型名称进行校验，校验设备是否为c8812或者c8812的一些别名，校验成功的话继续刷机操作，失败的话终止刷机，只要是起到一个保护的作用，一面刷错机器
 
mount(“ext4″, “EMMC”, “/dev/block/mmcblk0p12″, “/system”);                       
 
#这个是挂载system分区，方便后面进行读写，用到的参数在命令讲解中都有说，这里需要注意的就是分区不能写错了，挂载出错的话就会导致刷写到错误的分区上，如果是无关紧要的分区可能只是溢出，要是把引导分区刷了，就变砖了
 
package_extract_file(“system/bin/backuptool.sh”, “/tmp/backuptool.sh”);              
package_extract_file(“system/bin/backuptool.functions”, “/tmp/backuptool.functions”);
 
#这个是复制文件到另一个位置，可以重新命名
 
set_perm(0, 0, 0777, “/tmp/backuptool.sh”);
set_perm(0, 0, 0644, “/tmp/backuptool.functions”);
 
#文件的权限设定，如果文件没有权限的话将不能够执行
 
run_program(“/tmp/backuptool.sh”, “backup”);
 
#运行指定的这个backuptool.sh  shell文件，进行backup操作，这个一般用不到，都是一些有特殊的要求的第三方在做rom的时候，写一些需要实现某些功能的脚本文件，刷机的时候自动运行，
 
unmount(“/system”);
 
#卸载system分区
 
show_progress(0.500000, 0);
 
#这个是刷机进度条的设定
 
format(“ext4″, “EMMC”, “/dev/block/mmcblk0p12″, “0”, “/system”);
 
#格式化system分区，注意这里是需要5个参数，有的recovery对参数又要求，可能导致刷机终止
 
mount(“ext4″, “EMMC”, “/dev/block/mmcblk0p13″, “/data”);
 
#挂载data分区，方便后面进行读写操作
 
package_extract_dir(“data”, “/data”);
 
#将rom包中的data文件夹刷写到手机的data分区中
 
mount(“ext4″, “EMMC”, “/dev/block/mmcblk0p12″, “/system”);
 
#挂载系统分区，方便后面进行读写操作
 
package_extract_dir(“system”, “/system”);
 
#将rom包中的sys文件夹刷写到system分区中
 
symlink(“Roboto-Bold.ttf”, “/system/fonts/DroidSans-Bold.ttf”);
symlink(“Roboto-Regular.ttf”, “/system/fonts/DroidSans.ttf”);
symlink(“busybox”, “/system/xbin/[“, “/system/xbin/[[“,
        “/system/xbin/adjtimex”, “/system/xbin/arp”, “/system/xbin/ash”,
        “/system/xbin/awk”, “/system/xbin/base64″, “/system/xbin/basename”,
        “/system/xbin/bbconfig”, “/system/xbin/blkid”, “/system/xbin/blockdev”,
        “/system/xbin/brctl”, “/system/xbin/bunzip2″, “/system/xbin/bzcat”,
        “/system/xbin/bzip2″, “/system/xbin/cal”, “/system/xbin/cat”,
        “/system/xbin/catv”, “/system/xbin/chattr”, “/system/xbin/chgrp”,
        “/system/xbin/chmod”, “/system/xbin/chown”, “/system/xbin/chroot”,
        “/system/xbin/clear”, “/system/xbin/cmp”, “/system/xbin/comm”,
        “/system/xbin/cp”, “/system/xbin/cpio”, “/system/xbin/crond”,
        “/system/xbin/crontab”, “/system/xbin/cut”, “/system/xbin/date”,
        “/system/xbin/dc”, “/system/xbin/dd”, “/system/xbin/depmod”,
        “/system/xbin/devmem”, “/system/xbin/df”, “/system/xbin/diff”,
        “/system/xbin/dirname”, “/system/xbin/dmesg”, “/system/xbin/dnsd”,
        “/system/xbin/dos2unix”, “/system/xbin/du”, “/system/xbin/echo”,
        “/system/xbin/ed”, “/system/xbin/egrep”, “/system/xbin/env”,
        “/system/xbin/expand”, “/system/xbin/expr”, “/system/xbin/false”,
        “/system/xbin/fdisk”, “/system/xbin/fgrep”, “/system/xbin/find”,
        “/system/xbin/flash_lock”, “/system/xbin/flash_unlock”,
        “/system/xbin/flashcp”, “/system/xbin/flock”, “/system/xbin/fold”,
        “/system/xbin/free”, “/system/xbin/freeramdisk”, “/system/xbin/fsync”,
        “/system/xbin/ftpget”, “/system/xbin/ftpput”, “/system/xbin/fuser”,
        “/system/xbin/getopt”, “/system/xbin/grep”, “/system/xbin/groups”,
        “/system/xbin/gunzip”, “/system/xbin/gzip”, “/system/xbin/halt”,
        “/system/xbin/head”, “/system/xbin/hexdump”, “/system/xbin/id”,
        “/system/xbin/ifconfig”, “/system/xbin/inetd”, “/system/xbin/insmod”,
        “/system/xbin/install”, “/system/xbin/iostat”, “/system/xbin/ip”,
        “/system/xbin/kill”, “/system/xbin/killall”, “/system/xbin/killall5″,
        “/system/xbin/length”, “/system/xbin/less”, “/system/xbin/ln”,
        “/system/xbin/losetup”, “/system/xbin/ls”, “/system/xbin/lsattr”,
        “/system/xbin/lsmod”, “/system/xbin/lsusb”, “/system/xbin/lzcat”,
        “/system/xbin/lzma”, “/system/xbin/lzop”, “/system/xbin/lzopcat”,
        “/system/xbin/man”, “/system/xbin/md5sum”, “/system/xbin/mesg”,
        “/system/xbin/mkdir”, “/system/xbin/mke2fs”, “/system/xbin/mkfifo”,
        “/system/xbin/mkfs.ext2″, “/system/xbin/mkfs.vfat”,
        “/system/xbin/mknod”, “/system/xbin/mkswap”, “/system/xbin/mktemp”,
        “/system/xbin/modinfo”, “/system/xbin/modprobe”, “/system/xbin/more”,
        “/system/xbin/mount”, “/system/xbin/mountpoint”, “/system/xbin/mpstat”,
        “/system/xbin/mv”, “/system/xbin/nanddump”, “/system/xbin/nandwrite”,
        “/system/xbin/netstat”, “/system/xbin/nice”, “/system/xbin/nohup”,
        “/system/xbin/nslookup”, “/system/xbin/ntpd”, “/system/xbin/od”,
        “/system/xbin/patch”, “/system/xbin/pgrep”, “/system/xbin/pidof”,
        “/system/xbin/ping”, “/system/xbin/pkill”, “/system/xbin/pmap”,
        “/system/xbin/poweroff”, “/system/xbin/printenv”, “/system/xbin/printf”,
        “/system/xbin/ps”, “/system/xbin/pstree”, “/system/xbin/pwd”,
        “/system/xbin/pwdx”, “/system/xbin/rdev”, “/system/xbin/readlink”,
        “/system/xbin/realpath”, “/system/xbin/renice”, “/system/xbin/reset”,
        “/system/xbin/resize”, “/system/xbin/rev”, “/system/xbin/rm”,
        “/system/xbin/rmdir”, “/system/xbin/rmmod”, “/system/xbin/route”,
        “/system/xbin/run-parts”, “/system/xbin/rx”, “/system/xbin/sed”,
        “/system/xbin/seq”, “/system/xbin/setconsole”, “/system/xbin/setserial”,
        “/system/xbin/setsid”, “/system/xbin/sh”, “/system/xbin/sha1sum”,
        “/system/xbin/sha256sum”, “/system/xbin/sha512sum”,
        “/system/xbin/sleep”, “/system/xbin/sort”, “/system/xbin/split”,
        “/system/xbin/stat”, “/system/xbin/strings”, “/system/xbin/stty”,
        “/system/xbin/sum”, “/system/xbin/swapoff”, “/system/xbin/swapon”,
        “/system/xbin/sync”, “/system/xbin/sysctl”, “/system/xbin/tac”,
        “/system/xbin/tail”, “/system/xbin/tar”, “/system/xbin/taskset”,
        “/system/xbin/tee”, “/system/xbin/telnet”, “/system/xbin/telnetd”,
        “/system/xbin/test”, “/system/xbin/tftp”, “/system/xbin/tftpd”,
        “/system/xbin/time”, “/system/xbin/timeout”, “/system/xbin/top”,
        “/system/xbin/touch”, “/system/xbin/tr”, “/system/xbin/traceroute”,
        “/system/xbin/true”, “/system/xbin/ttysize”, “/system/xbin/tune2fs”,
        “/system/xbin/umount”, “/system/xbin/uname”, “/system/xbin/uncompress”,
        “/system/xbin/unexpand”, “/system/xbin/uniq”, “/system/xbin/unix2dos”,
        “/system/xbin/unlzma”, “/system/xbin/unlzop”, “/system/xbin/unxz”,
        “/system/xbin/unzip”, “/system/xbin/uptime”, “/system/xbin/usleep”,
        “/system/xbin/uudecode”, “/system/xbin/uuencode”, “/system/xbin/vi”,
        “/system/xbin/watch”, “/system/xbin/wc”, “/system/xbin/wget”,
        “/system/xbin/which”, “/system/xbin/whoami”, “/system/xbin/xargs”,
        “/system/xbin/xz”, “/system/xbin/xzcat”, “/system/xbin/yes”,
        “/system/xbin/zcat”);
symlink(“mksh”, “/system/bin/sh”);
symlink(“toolbox”, “/system/bin/cat”, “/system/bin/chmod”,
        “/system/bin/chown”, “/system/bin/cmp”, “/system/bin/date”,
        “/system/bin/dd”, “/system/bin/df”, “/system/bin/dmesg”,
        “/system/bin/getevent”, “/system/bin/getprop”, “/system/bin/hd”,
        “/system/bin/id”, “/system/bin/ifconfig”, “/system/bin/iftop”,
        “/system/bin/insmod”, “/system/bin/ioctl”, “/system/bin/ionice”,
        “/system/bin/kill”, “/system/bin/ln”, “/system/bin/log”,
        “/system/bin/ls”, “/system/bin/lsmod”, “/system/bin/lsof”,
        “/system/bin/md5″, “/system/bin/mkdir”, “/system/bin/mount”,
        “/system/bin/mv”, “/system/bin/nandread”, “/system/bin/netstat”,
        “/system/bin/newfs_msdos”, “/system/bin/notify”, “/system/bin/printenv”,
        “/system/bin/ps”, “/system/bin/r”, “/system/bin/reboot”,
        “/system/bin/renice”, “/system/bin/rm”, “/system/bin/rmdir”,
        “/system/bin/rmmod”, “/system/bin/route”, “/system/bin/schedtop”,
        “/system/bin/sendevent”, “/system/bin/setconsole”,
        “/system/bin/setprop”, “/system/bin/sleep”, “/system/bin/smd”,
        “/system/bin/start”, “/system/bin/stop”, “/system/bin/sync”,
        “/system/bin/top”, “/system/bin/touch”, “/system/bin/umount”,
        “/system/bin/uptime”, “/system/bin/vmstat”, “/system/bin/watchprops”,
        “/system/bin/wipe”);
 
#以上是创建toolbox和busybox工具集的符号链接操作，toolbox和busybox都是工具集，我们在使用的时候都是终端输入  $busybox ls  这样才能使用里面包含的ls工具创建符号链接的意思就是，将工具集里面的小工具都引用出来，我们可以直接在终端输入工具的名字，然后符号链接会自动找到工具集中的小工具运行这样方便了工具集的使用
 
set_perm_recursive(0, 0, 0755, 0644, “/system”);
set_perm_recursive(0, 0, 0755, 0755, “/system/addon.d”);
set_perm_recursive(0, 2000, 0755, 0755, “/system/bin”);
set_perm(0, 3003, 02750, “/system/bin/netcfg”);
set_perm(0, 3004, 02755, “/system/bin/ping”);
set_perm(0, 2000, 06750, “/system/bin/run-as”);
set_perm_recursive(1002, 1002, 0755, 0440, “/system/etc/bluetooth”);
set_perm(0, 0, 0755, “/system/etc/bluetooth”);
set_perm(0, 0, 0644, “/system/etc/bluetooth/BCM4330.hcd”);
set_perm(1000, 1000, 0640, “/system/etc/bluetooth/auto_pairing.conf”);
set_perm(3002, 3002, 0444, “/system/etc/bluetooth/blacklist.conf”);
set_perm(0, 0, 0644, “/system/etc/bluetooth/init.bcm.bt.sh”);
set_perm(1002, 1002, 0440, “/system/etc/dbus.conf”);
set_perm(1014, 2000, 0550, “/system/etc/dhcpcd/dhcpcd-run-hooks”);
set_perm_recursive(0, 2000, 0755, 0755, “/system/etc/init.d”);
set_perm(0, 0, 0755, “/system/etc/init.d”);
set_perm(0, 2000, 0550, “/system/etc/init.goldfish.sh”);
set_perm_recursive(0, 0, 0755, 0555, “/system/etc/ppp”);
set_perm_recursive(0, 2000, 0755, 0644, “/system/vendor”);
set_perm(0, 0, 0644, “/system/vendor/etc/audio_effects.conf”);
set_perm_recursive(0, 2000, 0755, 0755, “/system/xbin”);
set_perm(0, 0, 06755, “/system/xbin/librank”);
set_perm(0, 0, 06755, “/system/xbin/procmem”);
set_perm(0, 0, 06755, “/system/xbin/procrank”);
set_perm(0, 0, 06755, “/system/xbin/su”);
 
#这里是进行权限的设定，最后一条需要大家注意一下，这个是和root权限有着密切联系的，su文件就是获取root权限的，如果他的权限设置的不对的话可能就会导致root不成功，还有一个需要大家注意的地方就是，你赋予权限的文件一定要存在，否则可能导致刷机失败
 
show_progress(0.200000, 0);
show_progress(0.200000, 10);
package_extract_file(“system/bin/backuptool.sh”, “/tmp/backuptool.sh”);
package_extract_file(“system/bin/backuptool.functions”, “/tmp/backuptool.functions”);
set_perm(0, 0, 0777, “/tmp/backuptool.sh”);
set_perm(0, 0, 0644, “/tmp/backuptool.functions”);
run_program(“/tmp/backuptool.sh”, “restore”);
 
#这些之前讲过了
 
delete(“/system/bin/backuptool.sh”);
delete(“/system/bin/backuptool.functions”);
 
#这个是删除指定的文件
 
package_extract_file(“system/bin/modelid_cfg.sh”, “/tmp/modelid_cfg.sh”);
set_perm(0, 0, 0777, “/tmp/modelid_cfg.sh”);
run_program(“/tmp/modelid_cfg.sh”, “”);
show_progress(0.200000, 10);
 
#这些之前都讲过了
 
package_extract_file(“boot.img”, “/dev/block/mmcblk0p15″);
 
#这里是刷写内核boot.img的，主要需要注意的还是分区这里
 
show_progress(0.100000, 0);
unmount(“/data”);
unmount(“/system”);
 
#最后卸载data和system分区，用完之后就要卸载，这个习惯大家要养成，尤其是在linux下如果不卸载的话，可能会因为一时的疏忽导致数据的损坏和丢失。

##以上就是脚本文件的分析