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    <p>You can obfuscate shell scripts with <a href="http://comp.eonworks.com/scripts/obfuscate_shell_script-20011012.html" rel="nofollow">something like ofbsh</a>. You won't easily bundle other programs into a single executable for unix, though. Normally the approach for installation would be to buld a package for your platform's package manager (e.g. <a href="http://tldp.org/HOWTO/RPM-HOWTO/" rel="nofollow">rpm,</a> <a href="http://tldp.org/HOWTO/html_single/Debian-Binary-Package-Building-HOWTO/" rel="nofollow">deb,</a> <a href="http://www.bolthole.com/solaris/makeapackage.html" rel="nofollow">pkg</a>) or to provide a tarball to unravel in the appropriate directory.</p> <p>If you need an executable file that unpacks the contents you might be able to use a shell archive. Take a look at the docs for <a href="http://www.gsp.com/cgi-bin/man.cgi?section=1&amp;topic=shar" rel="nofollow">shar(1)</a> and see if that will get what you want</p> <p>If you really need a scripting capability to glue multiple C programs together, take a look at the Tcl language. It has an API that is designed to trivially wrap C programs that expect to see <code>argv[]</code> style parameters. You can even embed the chunks of C code into a custom Tcl interpreter and glue it together with various Tcl scripts.</p> <p>If you really need to make it opaque, you could encrypt the tcl scripts and wrap the whole thing in something that unencrypts the tcl scripts to a buffer and then runs the Tcl interpreter on them. Tcl can accept scripts from a file or a <code>char*</code> buffer, so the unencrypted scripts never have to hit the file system.</p>
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    1. POHow to compile a linux shell script to be a standalone executable *binary* (i.e. not just e.g. chmod 755)?
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    1. COI would prefer something simple without the need for package manager as 1) I can't rely on the customer's knowledge to carry out such instructions and 2) I can't rely on the policies governing their machines regarding installing packages (and indeed from third parties). The simplest preferred approach is to be able to compile to proper machine code a single executable that will run out of the box without any dependencies.
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    2. COAdded this to the answer.
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    3. CO+1 For ofbsh, this might be useful in some cases. Though it might damage customer perception if the code looks unreadable, perhaps the customer may be concerned about quality issues, unless it is explained to them that the code is deliberately obfuscated so they can't understand it - which doesn't necessarily help build a relationship based on trust if we are trying to hide things from a 3rd-party, paying customer.
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