DragonFly On-Line Manual Pages
GZEXE(1) DragonFly General Commands Manual GZEXE(1)
gzexe -- create auto-decompressing executables
gzexe [-d] file ...
The gzexe utility uses gzip(1) to compress executables, producing exe-
cutables that decompress on-the-fly when executed. This saves disk
space, at the cost of slower execution times. The original executables
are saved by copying each of them to a file with the same name with a `~'
suffix appended. After verifying that the compressed executables work as
expected, the backup files can be removed.
The options are as follows:
-d Decompress executables previously compressed by gzexe.
The gzexe program refuses to compress non-regular or non-executable
files, files with a setuid or setgid bit set, files that are already com-
pressed using gzexe, files in /bin or /sbin, or programs it needs to per-
form on-the-fly decompression: sh(1), basename(1), mktemp(1), rm(1),
echo(1), tail(1), gzip(1), and chmod(1).
The gzexe utility replaces files by overwriting them with the generated
compressed executable. To be able to do this, it is required that the
original files are writable.
DragonFly 4.9 July 18, 2009 DragonFly 4.9