File::Slurp -- single call read & write file routines; read directories
use File::Slurp; $all_of_it = read_file($filename); @all_lines = read_file($filename); write_file($filename, @contents) overwrite_file($filename, @new_contnts); append_file($filename, @additional_contents); @files = read_dir($directory);
These are quickie routines that are meant to save a couple of lines of code over and over again. They do not do anything fancy.
read_file() does what you would expect. If you are using its output in array context, then it returns an array of lines. If you are calling it from scalar context, then returns the entire file in a single string.
It croaks()s if it can't open the file.
write_file() creates or overwrites files.
append_file() appends to a file.
overwrite_file() does an in-place update of an existing file or creates a new file if it didn't already exist. Write_file will also replace a file. The difference is that the first that that write_file() does is to trucate the file whereas the last thing that overwrite_file() is to trucate the file. Overwrite_file() should be used in situations where you have a file that always needs to have contents, even in the middle of an update.
read_dir() returns all of the entries in a directory except for "." and "..". It croaks if it cannot open the directory.
Copyright (C) 1996, 1998, 2001 David Muir Sharnoff. License hereby granted for anyone to use, modify or redistribute this module at their own risk. Please feed useful changes back to muir@idiom.com.
David Muir Sharnoff <muir@idiom.com>
To install File::Slurp, copy and paste the appropriate command in to your terminal.
cpanm
cpanm File::Slurp
CPAN shell
perl -MCPAN -e shell install File::Slurp
For more information on module installation, please visit the detailed CPAN module installation guide.