How to Encrypt Shell Scripts with gzexe: Step-by-Step Guide

Using gzexe to encrypt a shell script is a relatively simple process. Below are the detailed steps:

Write your shell script : create a file such as myscript.sh .

Make the script executable : run chmod +x myscript.sh . chmod +x myscript.sh Encrypt the script with gzexe : navigate to the script directory and run: gzexe myscript.sh This creates an encrypted file, typically named myscript.sh11 . After encryption the file contents appear as garbled data.

Check the encrypted script : use ls -l myscript.sh* to list the new file. ls -l myscript.sh* Run the encrypted script : execute it like a normal script: ./myscript.sh11 Decrypt the script (if needed) : use gzexe -d myscript.sh11 to restore the original myscript.sh file.

gzexe -d myscript.sh11

Note that gzexe’s encryption is simple compression‑based and offers limited security; for stronger protection consider tools like shc.

If gzexe is not installed, you can install it via your package manager. On Debian‑based systems:

sudo apt-get update
sudo apt-get install uz80

On Red Hat‑based systems: sudo yum install uz80 The uz80 package includes the gzexe tool, after which you can follow the steps above to encrypt your shell scripts.