[Courses] [Perl] Part 8: The "s///" Operator

[Bowen, Tricia]

try running this on the command-line:

perl -pi.bak -e 's/\W//g' test.txt

\W is equivalent to anything other than a word character ([^a-zA-Z0-9_]). 

test.txt is a sample file that contains your crazy characters.

--tricia

-----Original Message-----
From: Rui Fernandes [mailto:ruifernandes at tvtel.pt]
Sent: Thursday, November 06, 2003 3:15 PM
To: courses at linuxchix.org
Subject: [Courses] [Perl] Part 8: The "s///" Operator
Importance: High


Dear Sir,

I've got a problem with a substitution in Perl. I have a string ( let's supose $word) that can have values like the followings - it's impredictable:

asd3$( .ophG

wordº çhtn mnfbgd 

@word_8 klMNBVFR 12

I want to extract only the character A to Z , a to z and 0 to 1 from the strings so I could have:

asd3ophG

word çhtn mnfbgd

word 8 kIMNBVFR 12


How can I do this if I don't know the number of letters in the string?
Please answer as soon as possible - It's very urgent.

Best regards,

Rui Fernandes
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