Shell Programming and Scripting

I trying to match the begining of the following line in a perl script with a regular expression.

Code:

$ENV{'ORACLE_HOME'}

I tried this regluar expession:

Code:

/\$ENV\{\'ORACLE_HOME\'\}/

Instead of match, I got a blank prompt >

It seems to be a problem with the single quote. If I take it out it runs, it does not match, but runs.

Can someone help me out with right regluar expression?

Hi,

It would be helpful to see some of the code but try:

Code:

/\Q$ENV{'ORACLE_HOME'}\E/

Regards,
Birei

Tried /\Q$ENV{'ORACLE_HOME'}\E/, no prompt, but no match either. It took out the single quotes and gave me $ENV{ORACLE_HOME}

How about this,

Code:

#!/usr/bin/perl

while(<DATA>) {
print if (/\$ENV{\'ORACLE_HOME\'}/);
}

__DATA__
$ENV{'ORACLE_HOME'}
$ENV{'ORACLE_HOME'
$ENV{'d;''ORACLE_HOME'}ldkld
ldkdlldl

I am sorry, I should have put in the whole code. Here the code:

Code:

perl -pi -w -e 's/\$ENV{\'ORACLE_HOME\'}\$ENV1\{\'ORACLE_HOME\'}/g;' *.pl

I get the prompt and it does not replace the text

This is just a test, if I can get it to work then I will add more that I have tried and it did work.

Moderator's Comments:

Please use code tags

what exactly you want to do ? I mean what is the scenario and expected output ?

Here you are trying something and its not working, there could be better way of doing same if we know what you want.

Going back to your question, $ENV is perl hash to get environments variables. I am not sure what is $ENV1 ? or you are just doing it for testing?

you missed 2nd separator below ,

I have over 200 perl scripts in a directory. They have the following line in them:

Code:

$ENV{'ORACLE_HOME'}      = "/home/oracle/product/10.1.0/db_1"

I want to replace the line with the following:

Code:

$ENV{'ORACLE_HOME'}      = "/opt/app/d1gsa1d1/oracle/product/d1gsa1d1";

I want to replace the line the simple possible way. I used the following command:

Code:

perl -pi -w -e 's/\$ENV\{\'ORACLE_HOME\'\}      \= \"\/home\/oracle\/product\/10.1.0\/db_1\"\;/\$ENV\{\'ORACLE_HOME\'\}      \= \"\/opt\/app\/d1gsa1d1\/oracle\/product\/d1gsa1d1\"\;/g;' *.pl

(I bolded and underline the command so you can see what I am doing)

I get no match, no replacement, just a prompt >

I tested replacing the line from the = sign to the end of the line with the above command and it works, but I can not use that because I have 5 lines to replace in script with each having excactly the same 2nd half and a different 2nd for each of the 5 lines. The first part of each line starts with $ENV{', and single quote is part that does not work. If I had lines that did not have the single quote in the line, the above command would work (without the single quote of course).