20120516 工作筆記

1. 在 linux console 下設定 proxy：
export http_proxy=”http://hostname:portnumber”

2. SD card (sdb1、sdb2) mount 完成後（假設 mount 在 /media/boot/ 和 /media/rootfs/ 下），將 foo.tar.bz2 解壓到 /media/rootfs/：
tar jxfv foo.tar.bz2 –C /media/rootfs

3. 將 foo.tar.gz 解壓到 /myfolderpath/
tar zxfv foo.tar.gz –C /myfolderpath/

4. check out SVN server 中第 38 個版本：
svn co –r 38 –username MYNAME –password PASSWORD svn://hostip/folder/subfolder

5. 搜尋 FOLDER 資料夾中含有關鍵字 KEYWORD 的檔案並標示行數：
grep –r –n “KEYWORD” FOLDER

6. 讓自己寫的 script 開機後自動執行：
/etc/profile.d/my_script.sh

7. universalIndentGUI => save config file => create batch file (config and batch files shoud be at the same directory)

8. Vim 中的長字串自動完成：ctrl-p 或 ctrl-n

9. Good to use 共用資料夾 in VirtualBox guest OS, it's easy and powerful.

10. shift + right click folder => open command here

11. in 64bit Win7, 32bit-chrome will download 32bit Java by default

12. MSN minimize to system tray => Vista Mode

13. gtags 好像只能在 WinXP 32bit 下面才能正常運作，Win7 x64 無法, 但是在Ubuntu下可以正常運作

14. Good to use easygui in Python

15. win7 刪除服務 sc delete servicename

16. virtualbox network bridge 不能用混合模式

17. mount box.net: https://www.box.net/dav

18. mkmmc-android.sh

   1: #!/bin/bash

   2:  

   3: # Copyright (C) 2009 Andrei Dolnikov <dolnikov.andrei@gmail.com>

   4: #

   5: # Licensed under the Apache License, Version 2.0 (the "License");

   6: # you may not use this file except in compliance with the License.

   7: # You may obtain a copy of the License at

   8: #

   9: #      http://www.apache.org/licenses/LICENSE-2.0

  10: #

  11: # Unless required by applicable law or agreed to in writing, software

  12: # distributed under the License is distributed on an "AS IS" BASIS,

  13: # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  14: # See the License for the specific language governing permissions and

  15: # limitations under the License.

  16:  

  17: if [[ -z $1 || -z $2 || -z $3 || -z $4 ]]

  18: then

  19:     echo "mkmmc-android Usage:"

  20:     echo "    mkmmc-android <device> <board name> <uImage> <rootfs tar.bz2 archive>"

  21:     echo "    Example: mkmmc-android /dev/sdc beagleboard uImage rootfs.tar.bz2"

  22:     exit

  23: fi

  24:  

  25: if [[ -z `which mkimage` ]]

  26: then

  27:     echo "Please, install mkimage on your host"

  28:     echo "    On Ubuntu systems: sudo apt-get install uboot-mkimage"

  29:     exit

  30: fi

  31:  

  32: if ! [[ -e $2 ]]

  33: then

  34:     echo "Incorrect board name!"

  35:     exit

  36: fi

  37:  

  38: if ! [[ -e $3 ]]

  39: then

  40:     echo "Incorrect uImage location!"

  41:     exit

  42: fi

  43:  

  44: if ! [[ -e $4 ]]

  45: then

  46:     echo "Incorrect rootfs tarball location!"

  47:     exit

  48: fi

  49:  

  50: echo "All data on "$1" now will be destroyed! Continue? [y/n]"

  51: read ans

  52: if ! [ $ans == 'y' ]

  53: then

  54:     exit

  55: fi

  56:  

  57: echo "[Partitioning $1...]"

  58:  

  59: dev_sz=`fdisk -l $1 | grep $1: | awk '{print$(NF-1)}'`

  60: cyl=$(expr $dev_sz / 512 / 63 / 255)

  61: fat_end=$(expr $cyl / 2)

  62:  

  63: fdisk "$1" &> /dev/null << EOF

  64: o

  65: x

  66: h

  67: 255

  68: s

  69: 63

  70: c

  71: $cyl

  72: r

  73: n

  74: p

  75: 1

  76:  

  77: $fat_end

  78: t

  79: c

  80: a

  81: 1

  82: n

  83: p

  84: 2

  85:  

  86:  

  87: w

  88: EOF

  89:  

  90: echo "[Making filesystems...]"

  91:  

  92: mkfs.vfat -F 32 -n boot "$1"1 &> /dev/null

  93: mkfs.ext3 -L rootfs "$1"2 &> /dev/null

  94:  

  95: echo "[Copying files...]"

  96:  

  97: mount "$1"1 /mnt

  98: cp $3 /mnt/uImage

  99: mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n $2/normal/boot.script -d $2/normal/boot.script $2/normal/boot.scr &> /dev/null

 100: cp $2/normal/boot.scr /mnt

 101: umount "$1"1

 102:  

 103: mount "$1"2 /mnt

 104: tar jxvf $4 -C /mnt &> /dev/null

 105: chmod 755 /mnt

 106: umount "$1"2

 107:  

 108: echo "[Done]"