SlackBuildsOrg/system/makeself

makeself - Make self-extractable archives on Unix

makeself.sh is a small shell script that generates a self-extractable
tar.gz archive from a directory. The resulting file appears as a shell
script (many of those have a .run suffix), and can be launched as
is. The archive will then uncompress itself to a temporary directory
and an optional arbitrary command will be executed (for example an
installation script). This is pretty similar to archives generated
with WinZip Self-Extractor in the Windows world. Makeself archives
also include checksums for integrity self-validation (CRC and/or MD5
checksums).