File::RandomAccess - Random access reads of sequential file or scalar
use File::RandomAccess; $raf = new File::RandomAccess(\*FILE, $disableSeekTest); $raf = new File::RandomAccess(\$data); $err = $raf->Seek($pos); $num = $raf->Read($buff, $bytes);
Allows random access to sequential file by buffering the file if necessary. Also allows access to data in memory to be accessed as if it were a file.
Creates a new RandomAccess object given a file reference or reference to data in memory.
# Read from open file or pipe $raf = new File::RandomAccess(\*FILE); # Read from data in memory $raf = new File::RandomAccess(\$data);
0) Reference to RandomAccess object.
1) File reference or scalar reference.
2) flag set if file is already random access (disables automatic SeekTest).
Reference to RandomAccess object.
Performs test seek() on file to determine if buffering is necessary. If the seek() fails, then the file is buffered to allow random access. SeekTest() is automatically called from new unless specified.
$result = $raf->SeekTest();
1 if seek test passed (ie. no buffering required).
Must be called before any other i/o.
Get current position in file
$pos = $raf->Tell();
Current position in file
Seek to specified position in file. When buffered, this doesn't quite behave like seek() since it returns success even if you seek outside the limits of the file.
$success = $raf->Seek($pos, 0);
1) Position.
2) Whence (0=from start, 1=from cur pos, 2=from end).
1 on success, 0 otherwise
Read data from the file.
$num = $raf->Read($buff, 1024);
1) Buffer.
2) Number of bytes to read.
Number of bytes actually read.
Read a line from file (end of line is $/).
Number of bytes read.
Read whole file into buffer, without changing read pointer.
Nothing.
Set binary mode for file.
Close the file and free the buffer.
Copyright 2003-2008 Phil Harvey (phil at owl.phy.queensu.ca)
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Image::ExifTool(3pm)
To install Image::ExifTool, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Image::ExifTool
CPAN shell
perl -MCPAN -e shell install Image::ExifTool
For more information on module installation, please visit the detailed CPAN module installation guide.