$ lxsplit -j file.rar.0001
Erroneous filename. Please supply the extension.
Must end with .000 or .001
$ lxsplit --verison
LXSplit v0.2.4 by Richard Stellingwerff, O. Sezer.
Home page: http://lxsplit.sourceforge.net/
Usage: lxsplit [OPTION][FILE][SPLITSIZE]
Available options:
-j : join the files beginning with the given name
-s : split the given file. requires a valid size
Splitsize examples: 15M, 100m, 5000k, 30000000b
$ lxsplit -j file.rar.0001
Erroneous filename. Please supply the extension.
Must end with .000 or .001
$ lxsplit --verison
LXSplit v0.2.4 by Richard Stellingwerff, O. Sezer.
Home page: http://lxsplit.sourceforge.net/
Usage: lxsplit [OPTION] [FILE] [SPLITSIZE]
Available options:
-j : join the files beginning with the given name
-s : split the given file. requires a valid size
Splitsize examples: 15M, 100m, 5000k, 30000000b
Examples:
lxsplit -s hugefile.bin 15M
lxsplit -j hugefile.bin.001
$
Well, only 3-digit extension is supported, your example is not supported.
Development/maintenance of this project is stalled, so you should
probably use cat to combine your files.