74 lines
2.1 KiB
Perl
Executable File
74 lines
2.1 KiB
Perl
Executable File
#!/usr/bin/perl
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# ds - calculate and display the size of a given directory in a human readable format
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# Copyright Frederick Boniface 2023 - fredboniface.co.uk
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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use strict;
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use warnings;
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use File::Find;
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if (@ARGV == 0) {
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print <<EOF;
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\nUsage: $0 <directory_path>
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Calculate the size of a directory and its contents.\n
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EOF
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exit;
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}
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my $dir_path = $ARGV[0];
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unless (-d $dir_path) {
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die "$dir_path is not a directory\n"
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}
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if ($dir_path eq '/') {
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die "You are not able to run 'ds' on the root directory\n"
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}
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my $total_size = 0;
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sub calculate_size {
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my $file = $File::Find::name;
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return if -l $file;
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if (-f $file) {
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$total_size += -s $file;
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}
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}
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find(\&calculate_size, $dir_path);
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sub format_size {
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my $size = shift;
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my @units = qw(B KB MB GB TB);
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my $unit_index = 0;
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while ($size >= 1024 && $unit_index < @units -1) {
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$size /= 1024;
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$unit_index++;
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}
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return sprintf("%.2f %s", $size, $units[$unit_index]);
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}
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print "Total size of $dir_path:\n", format_size($total_size), "\n" |