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Top Forums Shell Programming and Scripting Trivial perl doubt about FILE Post 302542600 by royalibrahim on Thursday 28th of July 2011 05:22:44 AM
Old 07-28-2011
Trivial perl doubt about FILE

Hi,

In the following perl code:

Code:
#!/usr/bin/perl -w

if (open(FILE, "< in_file")) {
    while (<FILE>) {
        chomp($_);
        if ($_ =~ /patt$/) {
            my $f = (split(" ", $_))[0];
            print "$f\n";
        }
    }
    close FILE;
}

Why changing the "FILE" as "$FILE" gives error in the while loop and in the close statement?
 

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APPLE_DUMP(1)							   Netatalk 2.2 						     APPLE_DUMP(1)

NAME
apple_dump - Dump AppleSingle/AppleDouble format file SYNOPSIS
apple_dump [-a] FILE | DIR apple_dump -f FILE apple_dump -d FILE apple_dump -h | -help | --help apple_dump -v | -version | --version DESCRIPTION
apple_dump dump AppleSingle/AppleDouble format file. OPTIONS
-a FILE|DIR This is default. Dump a AppleSingle/AppleDouble file for FILE or DIR automatically. Extrapolate FinderInfo type from absolute path. If FILE is not AppleSingle/AppleDouble format, look for .AppleDouble/FILE and ._FILE. If DIR, look for DIR/.AppleDouble/.Parent and ._DIR. -f FILE Dump FILE. Assume FinderInfo to be FileInfo. -d FILE Dump FILE. Assume FinderInfo to be DirInfo. -h, -help, --help Display the help and exit -v, -version, --version Show version and exit NOTE
There is no way to detect whether FinderInfo is FileInfo or DirInfo. By default, apple_dump examins whether file or directory, a parent directory is .AppleDouble, filename is ._*, filename is .Parent, and so on. If setting option -f or -d, assume FinderInfo and doesn't look for another file. SEE ALSO
ad(1) Netatalk 2.2 02 Sep 2011 APPLE_DUMP(1)
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