GZEXE(1) User Commands GZEXE(1)
NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe name ...DESCRIPTION
The
gzexe utility allows you to compress executables in place and
have them automatically uncompress and execute when you run them (at
a penalty in performance). For example if you execute ``gzexe
/usr/bin/gdb'' it will create the following two files:
-rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb
-rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~
/usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-
uncompressing executable file. You can remove /usr/bin/gdb~ once you
are sure that /usr/bin/gdb works properly.
This utility is most useful on systems with very small disks.
OPTIONS
-d Decompress the given executables instead of compressing them.
SEE ALSO
gzip(1),
znew(1),
zmore(1),
zcmp(1),
zforce(1)CAVEATS
The compressed executable is a shell script. This may create some
security holes. In particular, the compressed executable relies on
the PATH environment variable to find
gzip and some standard
utilities (
basename,
chmod,
ln,
mkdir,
mktemp,
rm,
sleep, and
tail).
BUGS
The
gzexe command attempts to retain the original file attributes on
the compressed executable, but you may have to fix them manually in
some cases, using
chmod or
chown.
GZEXE(1)
