Question

This might be a very dumb question to ask..
But, Lets say I have a C++ code which runs like this from terminal

./sayhello --name=fraz

outputs 
Hello, fraz!

Now, I want to write a shell script which takes an input from the user in that shell and gives me the output.

How can I achieve this?
Any suggestions

Answer 1

If you want to read the name from standard input:

#!/bin/sh
read arg
./sayhello --name=$arg

Or, if you want to read the name from the shell script’s command line:

#!/bin/sh
./sayhello --name=${1:-Rob}

---

You may need to specify the location of your sayhello binary:

/usr/local/bin/sayhello --name=${1:-Rob}

or

./binaries/linux/x86/sayhello --name=${1:-Rob}

Or even:

 PATH=/opt/my/path:${PATH}
 sayhello --name=${1:-Rob}