Create a "Hello, World!" program
Create a "Hello, World!" program
Create a "Hello, World!" program as a simple shell script. It will print a greeting for the name you provide as a command argument (or default to "World").
#!/bin/sh
NAME=${1:-World}
echo "Hello, $NAME!"
Make it executable and confirm that it works as expected.
$ chmod +x hello.sh
$ ./hello.sh
Output:
Hello, world!
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