解释这个 Bash 脚本

Question

好吧，我在我的 S6 EDGE 上刷了一个 debloater 脚本，但我很好奇这些命令实际上是如何工作的，所以我决定寻求一些帮助...

update-script

unmount("/system");
unmount("/data");
unmount("/preload");
ui_print(" ");

ui_print("Android 6.0 & 7.0 Debloat Script by Windforce0511");
ui_print("Script version: v1");
ui_print(" ");

ui_print("Mounting partitions: /system /data /cache");
run_program("/sbin/mount", "-t", "auto", "/system");
run_program("/sbin/mount", "-t", "auto", "/data");
run_program("/sbin/mount", "-t", "auto", "/cache");
ui_print("Partitions mounted");
ui_print(" ");

ui_print("Removing bloatware from /system/app");
run_program("/sbin/rm", "-rf", "system/app/AASAservice");
run_program("/sbin/rm", "-rf", "system/app/BluetoothMidiService");
run_program("/sbin/rm", "-rf", "system/app/CloudGateway2017");
run_program("/sbin/rm", "-rf", "system/app/GooglePrintRecommendationService");
run_program("/sbin/rm", "-rf", "system/app/FlipboardBriefing");
run_program("/sbin/rm", "-rf", "system/app/KnoxFolderContainer2");
run_program("/sbin/rm", "-rf", "system/app/KnoxRemoteContentsProvider");
run_program("/sbin/rm", "-rf", "system/app/Photos");
run_program("/sbin/rm", "-rf", "system/app/SBrowser_5.0");
run_program("/sbin/rm", "-rf", "system/app/ShareLink");
run_program("/sbin/rm", "-rf", "system/app/SPrintSpooler7");
run_program("/sbin/rm", "-rf", "system/app/Videos");
run_program("/sbin/rm", "-rf", "system/app/ANTPlusPlugins");
run_program("/sbin/rm", "-rf", "system/app/ANTPlusTest");
run_program("/sbin/rm", "-rf", "system/app/ANTRadioService");
run_program("/sbin/rm", "-rf", "system/app/AdvSoundDetector2015");
run_program("/sbin/rm", "-rf", "system/app/AllShareCastPlayer");
run_program("/sbin/rm", "-rf", "system/app/AllshareFileShare");
#run_program("/sbin/rm", "-rf", "system/app/EasyOneHand3");
run_program("/sbin/rm", "-rf", "system/app/FlipboardBriefingPanel");
run_program("/sbin/rm", "-rf", "system/app/Music2");
run_program("/sbin/rm", "-rf", "system/app/QuickConnect_40");
run_program("/sbin/rm", "-rf", "system/app/BBCAgent");
run_program("/sbin/rm", "-rf", "system/app/SBrowser_4_LATEST");
run_program("/sbin/rm", "-rf", "system/app/ColorBlind_M");
run_program("/sbin/rm", "-rf", "system/app/SecMemo3");
run_program("/sbin/rm", "-rf", "system/app/SimpleSharing");
ui_print("Done!");
ui_print(" ");

ui_print("Removing bloatware from /system/priv-app");
run_program("/sbin/rm", "-rf", "system/priv-app/AutoPreconfig");
run_program("/sbin/rm", "-rf", "system/priv-app/AccessControl_N");
run_program("/sbin/rm", "-rf", "system/priv-app/AutomationTest_FB");
run_program("/sbin/rm", "-rf", "system/priv-app/CallLogBackup");
run_program("/sbin/rm", "-rf", "system/priv-app/AssistantMenu_N");
run_program("/sbin/rm", "-rf", "system/priv-app/AxelSpringer");
run_program("/sbin/rm", "-rf", "system/priv-app/BeaconManager");
run_program("/sbin/rm", "-rf", "system/priv-app/ColorBlind_N");
run_program("/sbin/rm", "-rf", "system/priv-app/EasySetup");
#run_program("/sbin/rm", "-rf", "system/priv-app/GalaxyApps_3xh");
run_program("/sbin/rm", "-rf", "system/priv-app/GalaxyAppsWidget_Phone");
run_program("/sbin/rm", "-rf", "system/priv-app/GameHome");
run_program("/sbin/rm", "-rf", "system/priv-app/GameTools");
run_program("/sbin/rm", "-rf", "system/priv-app/OneDrive_Samsung_v2");
run_program("/sbin/rm", "-rf", "system/priv-app/PreloadInstaller");
#run_program("/sbin/rm", "-rf", "system/priv-app/SamsungAccount_Dream");
run_program("/sbin/rm", "-rf", "system/priv-app/SamsungCloud");
run_program("/sbin/rm", "-rf", "system/priv-app/SamsungMagnifier3");
run_program("/sbin/rm", "-rf", "system/priv-app/SamsungPass_1.1");
run_program("/sbin/rm", "-rf", "system/priv-app/SecEmail_N");
run_program("/sbin/rm", "-rf", "system/priv-app/SecureFolderStub");
run_program("/sbin/rm", "-rf", "system/priv-app/SFinder_v6");
run_program("/sbin/rm", "-rf", "system/priv-app/SNS_v2_N");
run_program("/sbin/rm", "-rf", "system/priv-app/SVoice");
run_program("/sbin/rm", "-rf", "system/priv-app/SvoicePLM");
run_program("/sbin/rm", "-rf", "system/priv-app/VoiceNote_5.0");
run_program("/sbin/rm", "-rf", "system/priv-app/VoiceNote_4.0");
run_program("/sbin/rm", "-rf", "system/priv-app/Fmm");
run_program("/sbin/rm", "-rf", "system/priv-app/FotaAgent");
run_program("/sbin/rm", "-rf", "system/priv-app/GalaxyBeta");
run_program("/sbin/rm", "-rf", "system/priv-app/GearManager");
run_program("/sbin/rm", "-rf", "system/priv-app/GoogleFeedback");
run_program("/sbin/rm", "-rf", "system/priv-app/HwModuleTest");
run_program("/sbin/rm", "-rf", "system/priv-app/ImsLogger+");
run_program("/sbin/rm", "-rf", "system/priv-app/KLMSAgent");
run_program("/sbin/rm", "-rf", "system/priv-app/LiveBroadcast");
run_program("/sbin/rm", "-rf", "system/priv-app/MyPlaces_Hero");
run_program("/sbin/rm", "-rf", "system/priv-app/PhoneErrService");
run_program("/sbin/rm", "-rf", "system/priv-app/PowerPoint_SamsungStub");
run_program("/sbin/rm", "-rf", "system/priv-app/RNB");
run_program("/sbin/rm", "-rf", "system/priv-app/RNBShell");
run_program("/sbin/rm", "-rf", "system/priv-app/sCloudBackupAppMOSUpgrade");
run_program("/sbin/rm", "-rf", "system/priv-app/SCloudService");
run_program("/sbin/rm", "-rf", "system/priv-app/SKSMAgent");
run_program("/sbin/rm", "-rf", "system/priv-app/SNS_v2");
run_program("/sbin/rm", "-rf", "system/priv-app/SOAgent");
run_program("/sbin/rm", "-rf", "system/priv-app/SPDClient");
run_program("/sbin/rm", "-rf", "system/priv-app/SPPPushClient_Prod");
run_program("/sbin/rm", "-rf", "system/priv-app/SVoiceLang_EnglishPack_GB_1.0");
run_program("/sbin/rm", "-rf", "system/priv-app/SVoiceLang_EnglishPack_US_1.0");
run_program("/sbin/rm", "-rf", "system/priv-app/SVoiceLang_FrenchPack_1.0");
ui_print("Done!");
ui_print(" ");

ui_print("Cleaning Cache and Dalvik-cache");
delete_recursive("/cache");
delete_recursive("/data/dalvik-cache");

ui_print("Unmounting partitions: /system /data /cache");
unmount("/data");
unmount("/cache");
unmount("/system");
ui_print(" ");

ui_print("Enjoy smoothness and much better battery life! :)");
ui_print(" ");
ui_print(" ");

ui_print("You can easily edit script and add character ' # ' to exclude certain APP from deleting.");
ui_print(" ");

ui_print("############################################");

以下是我不明白的地方：

sbin/rm
sbin/mount
t
自动

我检查了 phone 上的 sbin 目录，但没有 rm 或挂载文件.. 所以请任何人向我详细解释，因为我是 Bash 脚本的新手。

Answer 1

不懂的可以分为两个命令组，

rm组
/sbin/rm -fr 静默删除目录和文件
挂载组
/sbin/mount -t auto 在自动配置参数下挂载分区，主要与 mtab 和 fstab

您可以对以上引用的术语进行更多研究

如果你看不到/sbin下的rm和mount文件，我可以想到两种解释

只有具有有效root权限的应用才能做到这一点，而您在扫描时正在没有持有root权限的应用中查看/sbin。
生根设备是通过在特殊目录下放置一个特殊的二进制文件 su。
应用程序必须显式调用 exec("su") 以启动具有 root 权限的进程
以便它可以删除系统文件、挂载或卸载分区等。
您正在查看chroot环境，真正的/sbin在环境之外。
这不太可能发生在您的 phone,
这是一种为进程（及其子进程）重新定位 / 目录的方法。

Answer 2

好的，我已经弄明白了。

使用的脚本语言叫做Edify。虽然与bash类似，但格式不同，但都调用Linux程序来执行任务。如果需要，您可以阅读 rm and mount 的手册页。对于正在 sbin 中寻找 rm 和 mount 文件的任何人，停止寻找它你不会找到它，即使是 root user

最近，通常在 TWRP 中。恢复将安装一个 busybox 实现，它提供对安装在 sbin 目录中的基本 Linux 程序的访问。您必须重新启动以恢复才能访问这些。

解释这个 Bash 脚本

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