How to realize the shell script of real-time streaming files in the background

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Copy the files under the bill folder to the bill1,bill2 folder according to a certain rule (file name parity).

Update bill1,bill2 processing progress label (update file.max)

File3 is the tag for the latest files in the bill directory, which is normally updated every minute (format: 20121016122100)

The code is as follows:

#! / bin/bash

# for wanggy 2012-10-16

Bill1=/infosms/bill1

Bill2=/infosms/bill2

File_max= `cat file3`

Cd / infosms/bill

While:

Echo "start"

Do

If [$file_max! = `cat file3`]; then

Echo "unequal, processing"

# judge file3 11-12 bits (parity)

Num1= `cut-c 11-12 file3`

# it will make an error if you encounter 08 when you do not add 1 inch to get the mold. (octal judgment? )

Num=$ ((10#$num1%2))

# num=$ (($num1%2))

# get the current file under bill (latest)

File_name= B`cat file3`

Echo "latest file: $file_name"

Case $num in

1)

Echo "odd"

Cp-a $file_name.. / bill1

Echo `cat file3` >.. / bill1/file.max

0)

Echo "even"

Cp-a $file_name.. / bill2

Echo `cat file3` >.. / bill2/file.max

Esac

Echo "give the latest value to file_max"

File_max= `cat file3`

Else

Echo "equal, do not handle, quit!"

# file_date= `cat $filename`

# exit 1

Fi

Echo "wait 10 seconds and judge next time."

Sleep 10

Done

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