shc:tldr:32703

The command "shc -f ${script} -e ${dd-mm-yyyy} -m "${Please contact your provider}" is a command-line instruction that utilizes the "shc" utility. Here is the breakdown of each component:

• "shc" is a program that stands for "Shell Compiler." It is used to compile shell scripts into binary executables.
• "-f ${script}" specifies the shell script file that you want to compile. "${script}" is a placeholder for the actual file name.
• "-e ${dd-mm-yyyy}" is an option used to set an expiration date for the compiled binary. "${dd-mm-yyyy}" is a placeholder for a specific date in the format of day-month-year.
• "-m "${Please contact your provider}"" sets a custom message to be displayed on the command line when the compiled binary runs. The message within the quotes is "Please contact your provider," but it could be any other message you desire.

Overall, this command compiles the specified shell script into a binary executable using the "shc" utility, sets an expiration date for the binary, and adds a custom message to be displayed when the binary is run.