| .TH ISOSIZE 8 "June 2011" "util-linux" "System Administration" |
| .SH NAME |
| isosize \- output the length of an iso9660 filesystem |
| .SH SYNOPSIS |
| .B isosize |
| .RI [options] " iso9660_image_file" |
| .SH DESCRIPTION |
| .PP |
| This command outputs the length of an iso9660 filesystem that |
| is contained in the specified file. This file may be a normal file or |
| a block device (e.g.\& /dev/hdd or /dev/sr0). In the absence of |
| any options (and errors), it will output the size of the iso9660 |
| filesystem in bytes. This can now be a large number (>> 4\ GB). |
| .SH OPTIONS |
| .TP |
| .BR \-x , " \-\-sectors" |
| Show the block count and block size in human-readable form. |
| The output uses the term "sectors" for "blocks". |
| .TP |
| .BR \-d , " \-\-divisor " \fInumber\fR |
| Only has an effect when |
| .B \-x |
| is not given. The value shown (if no errors) |
| is the iso9660 file size in bytes divided by |
| .IR number . |
| So if |
| .I number |
| is the block size then the shown value will be the block count. |
| .PP |
| The size of the file (or block device) holding an iso9660 |
| filesystem can be marginally larger than the actual size of the |
| iso9660 filesystem. One reason for this is that cd writers |
| are allowed to add "run out" sectors at the end of an iso9660 |
| image. |
| .SH AVAILABILITY |
| The isosize command is part of the util-linux package and is available from |
| .UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/ |
| Linux Kernel Archive |
| .UE . |
