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Diffstat (limited to 'gzexe.1')
| -rw-r--r-- | gzexe.1 | 51 |
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@@ -0,0 +1,51 @@ +.TH GZEXE 1 +.SH NAME +gzexe \- compress executable files in place +.SH SYNOPSIS +.B gzexe +.I "name .\|.\|." +.SH DESCRIPTION +The +.I 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: +.nf +.br + -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~ +.fi +/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. +.PP +This utility is most useful on systems with very small disks. +.SH OPTIONS +.TP +.B \-d +Decompress the given executables instead of compressing them. +.SH "SEE ALSO" +gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) +.SH 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 +.I gzip +and some standard utilities +.RI ( basename , +.IR chmod , +.IR ln , +.IR mkdir , +.IR mktemp , +.IR rm , +.IR sleep , +and +.IR tail ). +.SH "BUGS" +.I gzexe +attempts to retain the original file attributes on the compressed executable, +but you may have to fix them manually in some cases, using +.I chmod +or +.IR chown . |