OpenSuSe user can install lxSplit using "1-click" installer - here
lxSplit splits and merges files with the -s and -j flags respectively.
To split a big file into smaller pieces of 15 MB each, run the following command:
lxsplit -s hugefile.bin 15MOutput size can be given in (M)egabytes, (k)ilobytes and (b)ytes.
To merge (join) the already split pieces into the original big file, run this command:
lxsplit -j smallfiles.bin.001All resulting files (from either splitting or joining) will be placed in the current directory.
Note: Same thing can be done using 'split' (to split the files) and 'cat' command (to join the files) -- here