Replace html in multiple files (80+)

Gelon · 03-02-2010, 04:45 AM

Dear Linux users

I'm not very well know with linux commands so hopefully you can help me out. I want to change some HTML in my files (80+ so I prefer not to do this by hand).

I got a script to replace a string in files, however the HTML I want to replace contains an enter (and tab of 4 spaces) (explanation below)

Does someone know how I could update my HTML by using a function in Linux?

I also found sed but don't know how to use it with the enter (linenumbers will not work because they variate)...

****

Source:

Code:

    </div>
    <!-- END YEAR MENU -->

Target:

Code:

    </td>
    <!-- END YEAR MENU -->

I could not replace all </div> because that will override some others

Friends code:

Code:

#!/usr/bin/perl -w
use strict;
use diagnostics;

if (scalar(@ARGV) < 3) {
    print "Syntax: $0 FROM TO <files>$/";
    exit(0);
}

my $from = shift @ARGV || "";
my $to = shift @ARGV || "";
my @files = @ARGV;

# check input
if (($from =~ /[\%|\$|\\]/) || ($to =~ /[\%|\$|\\]/)) {
    print "FROM and TO may not contain \%, \$ or \\ characters!$/";
    exit(0);
}

#$from =~ s/\$/\\\$/g;
#$to =~ s/\$/\\\$/g;

print "Replacing $from with $to...$/";

foreach my $file (@files) {
    if (open(INPUT, "<$file")) {      
	my @content = <INPUT>;
	my $result = ();
        my $changed = 0;
	foreach my $line (@content) {
	    if ($line =~ s/$from/$to/g) {
		$changed++;
	    };	    
	}
	if ($changed > 0) {
	    if (open(OUTPUT, ">$file")) {
		print "Changed $file $changed time(s).$/";
		print OUTPUT @content;
	    } else {
		print STDERR "Cannot write $file!$/";	    
	    }
	}
    } else {
	print STDERR "Cannot read $file!$/";
    }
}

Executable with: ./replace 'FROM' 'TO' files
Using a /n or /r did not work (even with removing the / check...

neonsignal · 03-02-2010, 06:08 AM

The following may help:

Code:

perl -p0777i -e 's:</div>(\s*<!-- END YEAR MENU -->):</td>$1:g' *.html

The '0777' flag changes the record separator. This means the whole file will get treated as a single line. The 'i' flag does the operation in place (replacing the existing file with the modified one).

Gelon · 03-02-2010, 06:43 AM

Thanks that worked just had to change <!-- to <\!--