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Full Discussion: Help understanding sed
Top Forums UNIX for Dummies Questions & Answers Help understanding sed Post 302358131 by Scott on Thursday 1st of October 2009 11:51:45 AM
Old 10-01-2009
That's still not what I said (unless you copied it about 10 seconds after I wrote it! - which I guess you did) Smilie

I never used >>, only >

In any case, your own suggestion to use a single sed is cleaner and easier.

Code:
#!/bin/bash
function menu()
{
  echo "This program will convert Oracle schemas into SYBASE schemas."
}
 
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
 
[ ! -f ${file:-$$} -o -z "$newfile" ] && echo "Source file doesn't exist or target not specified" && exit 1

sed "s/TO_DATE/CONVERT/g;s/TO_CHAR/CONVERT/g;s/VARCHAR2/VARCHAR/g;s/NUMBER/NUMERIC/g;s/DATE/DATETIME/g" $file > $newfile


Last edited by Scott; 10-01-2009 at 04:00 PM.. Reason: Minor correction
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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