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1 perry 1 GZEXE
2 !!!GZEXE
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 SEE ALSO
8 CAVEATS
9 BUGS
10 ----
11 !!NAME
12
13
14 gzexe - compress executable files in place
15 !!SYNOPSIS
16
17
18 __gzexe__ [[ name ... ]
19 !!DESCRIPTION
20
21
22 The ''gzexe'' utility allows you to compress executables
23 in place and have them automatically uncompress and execute
24 when you run them (at a penalty in performance). For example
25 if you execute ``gzexe /bin/cat'' it will create the
26 following two files:
27
28
29 -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
30 -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
31 /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that /bin/cat works properly.
32
33
34 This utility is most useful on systems with very small
35 disks.
36 !!OPTIONS
37
38
39 __-d__
40
41
42 Decompress the given executables instead of compressing
43 them.
44 !!SEE ALSO
45
46
47 gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)
48 !!CAVEATS
49
50
51 The compressed executable is a shell script. This may create
52 some security holes. In particular, the compressed
53 executable relies on the PATH environment variable to find
54 ''gzip'' and some other utilities ''(tail, chmod, ln,
55 sleep).''
56 !!BUGS
57
58
59 ''gzexe'' attempts to retain the original file attributes
60 on the compressed executable, but you may have to fix them
61 manually in some cases, using ''chmod'' or
62 ''chown.''
63 ----
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