Help understanding sed Post: 302358095

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Top Forums UNIX for Dummies Questions & Answers Help understanding sed Post 302358095 by Makaer on Thursday 1st of October 2009 10:49:51 AM

10-01-2009

Registered User

Help understanding sed

I am trying to create a basic script that converts an Oracle script into a Sybase script.

The only things im changing are Datatypes and the to_char and to_date functions.

I am not really 100% sure of the way it works. I have tried running the functions through a loop to replace each word line by line but that didnt work.

If you could help me understand what I am doing wrong I would be very grateful.

Code:

#!/bin/bash

function menu()
{

echo "This program will convert Oracle syntax into SYBASE syntax."

}

function replaceDate()
{

cat $file | sed 's/TO_DATE/CONVERT/g' >> $newFile
cat $file | sed 's/TO_CHAR/CONVERT/g' >> $newFile
}
#Datatype conversion
function replaceWord()
{
cat $file | sed 's/VARCHAR2/VARCHAR/g' >> $newFile
cat $file | sed 's/NUMBER/NUMERIC/g' >> $newFile
cat $file | sed 's/DATE/DATETIME/g' >> $newFile

}
menu

read -p "Please enter the file name that you wish to convert: " file
read -p "Please enter the name of the new file: " newFile


        replaceDate
        replaceWord

Thanks.

Makaer

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LEARN ABOUT PHP

sybase_pconnect

SYBASE_PCONNECT(3)														SYBASE_PCONNECT(3)

sybase_pconnect - Open persistent Sybase connection

SYNOPSIS

       resource sybase_pconnect ([string  $servername], [string  $username], [string  $password], [string  $charset], [string  $appname])

DESCRIPTION

       sybase_pconnect(3) acts very much like sybase_connect(3) with two major differences.

	First,	when  connecting,  the	function  would first try to find a (persistent) link that's already open with the same host, username and
       password. If one is found, an identifier for it will be returned instead of opening a new connection.

	Second, the connection to the SQL server will not be closed when the execution of the script ends. Instead, the link will remain open  for
       future use (sybase_close(3) will not close links established by sybase_pconnect(3)).

	This type of links is therefore called 'persistent'.

PARAMETERS

	      o $servername
		- The servername argument has to be a valid servername that is defined in the 'interfaces' file.

	      o $username
		- Sybase user name

	      o $password
		- Password associated with $username.

	      o $charset
		- Specifies the charset for the connection

	      o $appname
		- Specifies an appname for the Sybase connection. This allow you to make separate connections in the same script to the same data-
		base. This may come handy when you have started a transaction in your current connection, and you need to be able to do a separate
		query which cannot be performed inside this transaction.

RETURN VALUES

	Returns a positive Sybase persistent link identifier on success, or FALSE on error.

SEE ALSO

       sybase_connect(3).

PHP Documentation Group 													SYBASE_PCONNECT(3)