02-03-2009
Compress uses the LZW algorithm, which has it's best results if characters have a high repetition. If you have a file consisting only of the letter 'A' repeated 1048576 times (=1M), the compressed file will only have about 1K. If the files are almost random, compression efficiency will go down.
Also, very small files will have almost no perceived compression, as any reduction in size might be canceled by overhead.
You could try gzip or bzip2 on those files.
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LEARN ABOUT DEBIAN
makeself
makeself(1) General Commands Manual makeself(1)
NAME
makeself - An utility to generate self-extractable archives.
SYNTAX
makeself [options] archive_dir file_name label [startup_script] [args]
DESCRIPTION
This program is a free (GPL) utility designed to create self-extractable archives from a directory.
OPTIONS
The following options are supported.
-v, --version Prints out the makeself version number and exits.
-h, --help Print out help information.
--gzip Compress using gzip (default if detected).
--bzip2 Compress using bzip2.
--compress Compress using the UNIX 'compress' command.
--nocomp Do not compress the data.
--notemp The archive will create archive_dir in the current directory and uncompress in ./archive_dir.
--copy Upon extraction, the archive will first copy itself to a temporary directory.
--append Append more files to an existing makeself archive. The label and startup scripts will then be ignored.
--current Files will be extracted to the current directory. Implies --notemp.
--header file Specify location of the header script.
--follow Follow the symlinks in the archive.
--nox11 Disable automatic spawn of an xterm if running in X11.
--nowait Do not wait for user input after executing embedded program from an xterm.
--nomd5 Do not create a MD5 checksum for the archive.
--nocrc Do not create a CRC32 checksum for the archive.
--lsm file LSM file describing the package.
AUTHORS
Makeself has been written by Stephane Peter <megastep@megastep.org>. This man page was originally written by Bartosz Fenski <fenio@o2.pl>
for the Debian GNU/Linux distribution (but it may be used by others).
2.1.4 makeself(1)