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test and replace the last letter of a chain

Jun 8, 2003, 2:49 PM
fmp
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Jun 8, 2003, 2:49 PM
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test and replace the last letter of a chain
Hi

I have many lines in one of my table as follow :

1 aayaadaax
2 bbybbbbbbbby
3 yccz

I want to displays these lines in my page but if the last letter of the chain is a "y" I want ot replace it by a "m"

So for my tree lines it should be

aayaadaax (nothing to do)
bbybbbbbbbbm (the last letter was a "y" so I did relpace it by a "m"
yccz (nothing to do)

I would like to know the perl command in perl to do it

Do I have to make a reverse of the chain and replace the first letter if it is a y then to make another reverse to display the chain

Txs for your help

FMP
Jun 8, 2003, 3:38 PM
Andy
Veteran / Moderator (18436 posts)
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Jun 8, 2003, 3:38 PM
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Re: [fmp] test and replace the last letter of a chain In reply to
Something like;

$var =~ s,y$,m$,;

Unsure

cheers

Andy (mod)
andy@ultranerds.co.uk
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Jun 8, 2003, 4:51 PM
Paul
Veteran (19537 posts)
Jun 8, 2003, 4:51 PM
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Re: [fmp] test and replace the last letter of a chain In reply to
Easier to do it from the command line :)

Code:
perl -p -i.bak -e 's/y$/m/' your_file.html

Last edited by:

Paul: Jun 8, 2003, 4:55 PM
Jun 8, 2003, 5:56 PM
fmp
User (179 posts)
Jun 8, 2003, 5:56 PM
Post #4 of 4
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Re: [Paul] test and replace the last letter of a chain In reply to
txs for u2

it works great

FMPWink