Flowchart, USB/SD Read & Write verification

USB Disk

MD5 Checksum - Linux

• Tool: md5sum

Generate MD5 checksum

Generate a 10M file for test propose.

• # dd if=/dev/zero of=/tmp/test-10M bs=1048576 count=10
• 10+0 records in
• 10+0 records out
• 10485760 bytes (10.0MB) copied, 0.063248 seconds, 158.1MB/s

• # ls -la
• test-10m

Generate MD5checksum

• # cd /tmp
• # md5sum test-10M > test-10M.md5

• # ls -la
• test-10M
• test-10M.md5

• # cat test-10M.md5
• f1c9645dbc14efddc7d8a322685f26eb  test-10M

Verify MD5 checksum

Copy test file (test-10m & test-10m.md5) to USB flash

• # mount -t vfat /dev/sda1 /usb
• # cp -rf test-10M test-10M.md5 /usb

• # ls -la /usb
• test-10M
• test-10M.md5

Verify test file in MD5checksum

• # cd /usb
• # md5sum -c test-10m.md5
• test-10M:  OK

MD5 checksum - Windows 7

• Tool: MD5 Checksum Tool
• Vender: NoVirusThanks

Generate MD5 Checksum

TCL, Switch - Select right one through multi-options

set num 3

switch $num {
              " 1 " { puts "Monday" }
              " 2 " { puts "Tuesday" }
              " 3 " { puts "Wednesday" }
              " 4 " { puts "Thursday" }
              " 5 " { puts "Friday" }
              " 6 " { puts "Saturday" }
              " 7 " { puts "Sunday" }
              " default " { puts "Wrong Value" }
}

[Output]

• Wednesday

TCL, File and Directory

Establish, Delete, Copy & Rename
Detect existing, Size & Type

[ALL Syntax]
file mkdir "directory_name"

file delete "directory_name"
file delete -force "directory_name"
file delete "file_name"

file copy  source-filename  target-filename
file copy -force  source-filename  target-filename

file rename source-filename  target-filename

file exists  filename
file isdirectory  filename
file isfile  filename

file size  filename
file type filename


TCL, File's Input & Output

[Procedure]

• Open file --> Read/Write file --> Close file

[Syntax] 

• Open ==> open filename "access"
• Write ==> puts filename "content"
• Close ==> close filename

[Example code]

• set fd [open "$PATH/$var_sn.tmp.log" a] 
• puts $fd "[time_str]: $msg"
• close $fd

[Access Parameter List]

• r : Reading a existing file
• r+ : Reading & Writing a existing file
• w : Empty a existing file,  and Writing the content.
• w:  Establish a new file, and Writing the content.
• w+ : Empty a existing file, and Writing & Reading the content.
• w+ : Establish a new file, and Writing & Reading the content.
• a : Append the content into the end of existing file, or Establish a new one.
• a+ : Append (Read & Write) the content into the end of existing file, or Establish a new one.

End.

yEd - Flow Chart tool

Payment: Free
Download place on Official web: http://www.yworks.com/en/downloads.html#yEd

This is a green software that so no need to install it into the Windows and Linux platform.
And JAVA JRE is required before the software installation.

TCL, TroubleShooting

Trouble-141016a]

輸入的字串無法被餵入 Console.

Example

• puts -nonewline $Cmd "q"

  => 輸入 q 欲離開播放程式, 但指令並沒有被下到播放程式

TCL, 特殊字串使用 e.g. Ctrl+C 的字串為 \x03

US-ASCII 控制字元

Ctrl + C ... (^C) ==> \x03 .. 字元名 End of Text（正文結束）
Ctrl + X ... (^X) ==> \x18 .. 字元名 Cancel（取消）
Ctrl + [ ... (^[) ==> \x1B .. 字元名 Escape（跳脫）

Disable Sublime Text 3 version update.

Way 1: Works
Under Windows 7 64bits

Fill this in "Preferences / Settings - User

=========================
Way 2: Looks not work sometimes.
Under Windows 7 32bits

Modify "hosts" file on path C:\Windows\System32\drivers\etc

Fill 2 lines into hosts file to STOP SUBLIMETEXT UPDATES.

• 127.0.0.1 sublimetext.com 
• 127.0.0.1 www.sublimetext.com