Shell Script Compiler
A generic shell script compiler. Shc takes a script, which is specified on the command line and produces C source code. The generated source code is then compiled and linked to produce a stripped binary executable.
The compiled binary will still be dependent on the shell specified in the first line of the shell code (i.e shebang) (i.e. #!/bin/sh), thus shc does not create completely independent binaries.
shc itself is not a compiler such as cc, it rather encodes and encrypts a shell script and generates C source code with the added expiration capability. It then uses the system compiler to compile a stripped binary which behaves exactly like the original script. Upon execution, the compiled binary will decrypt and execute the code with the shell -c option.
- sudo make install
make fails due to automake version, run
./autogen.sh before running the above commands.
sudo add-apt-repository ppa:neurobin/ppa sudo apt-get update sudo apt-get install shc
If the above installation method seems like too much work, then just download a compiled binary package from release page and copy the
shc binary to
shc.1 file to
shc [options] shc -f script.sh -o binary shc -U -f script.sh -o binary # Untraceable binary (prevent strace, ptrace etc..)
shc -f test.bash -o test, where test.bash is the bash source.
- output binary file will be test. If no output file is specified
-ooption, then it will create an executable with
.xextension by default.
The one (and I hope the only) limitation using shc is the _SC_ARG_MAX system configuration parameter. It limits the maximum length of the arguments to the exec function, limiting the maximum length of the runnable script of shc.
!! - CHECK YOUR RESULTS CAREFULLY BEFORE USING - !!