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How to apply a "tolower" AWK to a few parts of a document

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# 1  
Old 05-05-2009
How to apply a "tolower" AWK to a few parts of a document
Hi people,
i have a nice problem to solve..
in an text page i must change all the "*.php" occourences to the respective lowercase..

Example:

...
<tr><td>
<form action="outputEstrazione.php" method="get">
<table cellspacing='0,5' bgcolor='#000000'><tr><td>
<font size='2' color='#ffffff' face='tahoma'><b>Lettura documento input</b></font></td></tr><tr><td>
<table width='100%' height='100%' bgcolor='#ffffff' cellpadding='1'><tr><td>
...

must be modified in:

...
<tr><td>
<form action="outputestrazione.php" method="get">
<table cellspacing='0,5' bgcolor='#000000'><tr><td>
<font size='2' color='#ffffff' face='tahoma'><b>Lettura documento input</b></font></td></tr><tr><td>
<table width='100%' height='100%' bgcolor='#ffffff' cellpadding='1'><tr><td>
...




("outputEstrazione.php" >>> "outputestrazione.php")
Can you help me? It seems so simply but it's not for me Smilie
tnx! Smilie
# 2  
Old 05-05-2009
you are using any webserver and want to convert it on runtime? or you just have a text file?

In general,
for a text file, you can use

Quote:
cat filename | tr '[:upper:]' '[:lower:]'
if you must want to use awk..

Quote:
awk '{ print tolower($0)}' infile
# 3  
Old 05-05-2009
you can use sed to do that also:

Code:
sed  '/\.php/{
h
s/<.*\"\(.*\.php\)\".*>$/\1/
y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyj/
G
s/\(.*\)\n\(<*[^"]*\"\).*\.php\(\".*>\)/\2\1\3/
}' filename

cheers,
Devaraj Takhellambam
# 4  
Old 05-05-2009
Or you could use perl:

Code:
$
$ cat input.txt
<tr><td>
<form action="outputEstrazione.php" method="get">
<table cellspacing='0,5' bgcolor='#000000'><tr><td>
<font size='2' color='#ffffff' face='tahoma'><b>Lettura documento input</b></font></td></tr><tr><td>
<table width='100%' height='100%' bgcolor='#ffffff' cellpadding='1'><tr><td>
$
$
$ perl -ne '{if (/(^.*?")(.*?)(\.php.*$)/) {print $1.lc$2.$3,"\n"} else {print}}' input.txt
<tr><td>
<form action="outputestrazione.php" method="get">
<table cellspacing='0,5' bgcolor='#000000'><tr><td>
<font size='2' color='#ffffff' face='tahoma'><b>Lettura documento input</b></font></td></tr><tr><td>
<table width='100%' height='100%' bgcolor='#ffffff' cellpadding='1'><tr><td>
$
$

HTH,
tyler_durden

________________________________________________________
"If you don't claim your humanity, you will become a statistic."
# 5  
Old 05-06-2009
how about below perl code?

Code:
open $fh,"<","yourfile";
while(<$fh>){
	s/\b(.*)\.php/lc $1 . '.php'/e;
	print;
}

# 6  
Old 05-06-2009
hey great great thanks!!
Great solutions, i've chosen the perl one and it works perfectly:
perl -ne '{if (/(^.*?")(.*?)(\.php.*$)/) {print $1.lc$2.$3,"\n"} else {print}}' input.txt

I've never used perl, but i often see it's very useful and want to learn it, do you have any link to a good tutorial (not too complex, for a beginner)?

Thanks again for all the replies! You are simply the best UNIX forum on the net Smilie

p.s. sorry for my bad english ^^
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