IT News, Tutorials, Solutions – SYSTEM HALT

1. 

   James
   November 30th, 2010 - 07:28

   Hi Thank you so much for your instruction of “Compile C applications with gcc on iOS 4 (iPhone)”
   I follow you instructions and works fine.

   But i have a question can i ask you?
   I just want to run a shell script when iphone start up,
   here is what i do, but sems not work……
   Please help me

   Thanks a lot

   i made a start up shell script test.sh,
   it will generate a file LOG in /var/root

   after reboot i check the LaunchDaements com.xjames “launchctl list|grep xjames”
   it works, but when i check if there is a file LOG in /var/root, there is no LOG

   cat /var/root/hello.c
   #include
   int main()
   {
   printf(“hello, world\n”);
   system(“/bin/sh /var/root/test.sh”);
   return 0;
   }

   cat /var/root/test.sh
   #!/bin/sh
   echo test > /var/root/LOG

   cat /Library/LaunchDaemons/com.xjames.plist

   Label
   com.xjames
   Program
   /var/root/hello
   StandardErrorPath
   /dev/null
   RunAtLoad

   ======================================================================================
   iPhone:~ root# pwd
   /var/root

   ======================================================================================
   iPhone:~ root# ls
   1.sh fake-libgcc_1.0_iphoneos-arm.deb
   11.sh gcc_files/
   Groups_zh_TW.lproj/ gcc_files.tar.gz
   Library/ hello*
   Media/ hello.c
   Preferences/ iconoclasm.178_1.6.2_iphoneos-arm.deb
   STHeiti-Light.ttc include-2.0-sdk-ready-for-iphone/
   STHeiti-Medium.ttc ipod_deb/
   WebClips-3/ sdk-2.0-headers.tar.gz
   WebClips-4/ test.sh
   cBook/

   ======================================================================================
   iPhone:~ root# ls -al hello
   -rwxr-xr-x 1 root wheel 12984 Nov 30 12:11 hello*

   ======================================================================================
   iPhone:~ root# cat hello.c
   #include
   int main()
   {
   printf(“hello, world\n”);
   system(“/bin/sh /var/root/test.sh”);
   return 0;
   }

   ======================================================================================
   iPhone:~ root# cat test.sh
   #!/bin/sh
   echo test > /var/root/LOG

   ======================================================================================
   iPhone:~ root# ls -al hello
   -rwxr-xr-x 1 root wheel 12984 Nov 30 12:11 hello*

   ======================================================================================
   iPhone:~ root# ls
   1.sh fake-libgcc_1.0_iphoneos-arm.deb
   11.sh gcc_files/
   Groups_zh_TW.lproj/ gcc_files.tar.gz
   Library/ hello*
   Media/ hello.c
   Preferences/ iconoclasm.178_1.6.2_iphoneos-arm.deb
   STHeiti-Light.ttc include-2.0-sdk-ready-for-iphone/
   STHeiti-Medium.ttc ipod_deb/
   WebClips-3/ sdk-2.0-headers.tar.gz
   WebClips-4/ test.sh
   cBook/

   ======================================================================================
   iPhone:~ root# ./hello
   hello, world

   ======================================================================================
   iPhone:~ root# ls
   1.sh cBook/
   11.sh fake-libgcc_1.0_iphoneos-arm.deb
   Groups_zh_TW.lproj/ gcc_files/
   LOG gcc_files.tar.gz
   Library/ hello*
   Media/ hello.c
   Preferences/ iconoclasm.178_1.6.2_iphoneos-arm.deb
   STHeiti-Light.ttc include-2.0-sdk-ready-for-iphone/
   STHeiti-Medium.ttc ipod_deb/
   WebClips-3/ sdk-2.0-headers.tar.gz
   WebClips-4/ test.sh

   ======================================================================================
   iPhone:~ root# rm -f LOG

   ======================================================================================
   iPhone:~ root# ls /Library/LaunchDaemons/
   com.openssh.sshd.plist com.xjames.plist

   ======================================================================================
   iPhone:~ root# cat /Library/LaunchDaemons/com.xjames.plist

   Label
   com.xjames
   Program
   /var/root/hello
   StandardErrorPath
   /dev/null
   RunAtLoad

   =======================================================
   iPhone:~ root#reboot now

   ======================================================================================
   iPhone:~ root# ls
   1.sh fake-libgcc_1.0_iphoneos-arm.deb
   11.sh gcc_files/
   Groups_zh_TW.lproj/ gcc_files.tar.gz
   Library/ hello*
   Media/ hello.c
   Preferences/ iconoclasm.178_1.6.2_iphoneos-arm.deb
   STHeiti-Light.ttc include-2.0-sdk-ready-for-iphone/
   STHeiti-Medium.ttc ipod_deb/
   WebClips-3/ sdk-2.0-headers.tar.gz
   WebClips-4/ test.sh
   cBook/

   ======================================================================================
   iPhone:~ root# launchctl list|grep xjames
   - 0 com.xjames

Leave a comment Cancel reply