duff , sorry if my question was not clear , ok lets put it this way what if I want to just do : my input fils has only the following 
    export O_PREFIX=OLD

[download]
I am doing the follwoing to change the value from OLD to NEW: 
my $newValue='NEW';
s/O_PREFIX=(\w+)/O_PREFIX=$newValue/ if /O_PREFIX=/;

[download]
my code is working and I am reading from the correct file , however my output looks like this 
O_PREFIX=NEWOLD
instead of 
O_PREFIX=NEW

[download]
I hope this make it clear , if not then sorry :(

In reply to Re: Re: REGEX with input file by samy1212
in thread REGEX with input file by samy1212

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