# PYCDLIB-EXPLORER

NAME
SYNOPSIS
DESCRIPTION
COMMANDS
SEE ALSO
AUTHOR

## NAME

pycdlib-explorer - tool to examine and modify ISOs using pycdlib

## SYNOPSIS

pycdlib-explorer <iso-file>

## DESCRIPTION

This is a tool to examine and modify existing ISO files on disk. Using this tool, the files, directories, and metadata on an ISO can be examined, new files can be added, and old files can be deleted. Note that due to the nature of the ISO standard, files or directories on the ISO cannot be modified in place in a general way. To accomplish this, remove the file and then re-add it with new contents.

The commands that change the contents of the ISO only modify the in-memory copy. Changes are written out to a new ISO file when the write command is issued.

pycdlib-explorer has no command-line options; instead, it is controlled entirely at runtime through commands. The following section describes the available commands in pycdlib-explorer.

## COMMANDS

add_file <iso_path> <src_filename> [rr_name=<rr_name>]
[joliet_path=<joliet_path>]

Add the contents of src_filename to the ISO at the location specified in iso_path. If the ISO is a Rock Ridge ISO, rr_name must be specified; otherwise, it must not be. If the ISO is not a Joliet ISO, joliet_path must not be specified. If the ISO is a Joliet ISO, joliet_path is optional, but highly recommended to supply.

cd <iso_dir>

Change the current working directory to relative or absolute ISO path iso_dir.

| cwd |  | Show the current working directory. |
| exit |  | Exit out of pycdlib-explorer. |

get <iso_file> <out_file>

Copy the contents of the relative or absolute ISO path iso_file into out_file.

| help |  | Print the available commands. Use "help <cmd>" for a more detailed description of the commands, including the command-line arguments they require.
| ls |  | Show the contents of the current working directory. The format of the output is: TYPE(F=file, D=directory) NAME.

mkdir <iso_path> [rr_name=<rr_name>] [joliet_path=<joliet_path>]

Make a new directory called iso_path. If the ISO is a Rock Ridge ISO, rr_name must be specified; otherwise, it must not be. If the ISO is not a Joliet ISO, joliet_path must not be specified. If the ISO is a Joliet ISO, joliet_path is optional, but highly recommended to supply.

print_mode [iso9660|rr|joliet|udf]

Change which ’mode’ of filenames are printed out. There are four main modes: ISO9660 (iso9660, the default), Rock Ridge (rr), Joliet (joliet), and UDF (udf). The original iso9660 mode only allows filenames of 8 characters, plus 3 for the extension. The Rock Ridge extensions allow much longer filenames and much deeper directory structures. The Joliet extensions also allow longer filenames and deeper directory structures, but in an entirely different context (though in most circumstances, the Joliet context will mirror the ISO9660/Rock Ridge context). The UDF Bridge extensions add an entirely parallel UDF context to the ISO as well. Any given ISO will always have ISO9660 mode, but may have any combination of Rock Ridge, Joliet, and UDF (including none of them). Running this command with no arguments prints out the current mode. Passing ’iso9660’ as an argument sets it to the original ISO9660 mode. Passing ’rr’ as an argument sets it to Rock Ridge mode. Passing ’joliet’ as an argument sets it to Joliet mode. Passing ’udf’ as an argument sets it to UDF mode.

| quit |  | Exit out of pycdlib-explorer. |

rm_file <iso_path>

Remove the file named iso_path from the ISO. Note that this must be a file; to remove a directory, use rmdir.

rmdir <iso_path>

Remove the directory named iso_path from the ISO. Note that this must be a directory; to remove a file, use rm_file.

| tree |  | List the contents of the ISO in a tree-like format, similar to the bash tree command.

write <out_file>

Write a valid ISO9660 file out to out_file, taking into account any changes made while running the program. This is also sometimes referred to as "mastering" the ISO. Note that the out_file must NOT be the same file as the input file, or the resulting ISO will not work properly.

## SEE ALSO

pycdlib-extract-files(1), pycdlib-genisoimage(1)

## AUTHOR

Chris Lalancette <clalancette@gmail.com>