Create a hello.sh.
Engineers automate everything. Step one is creating a script
file with a SHEBANG (`#!/bin/bash`) so the kernel knows which
interpreter to use.
TASK
----
Create /home/user/hello.sh with:
#!/bin/bash
echo hello
A quick way:
echo '#!/bin/bash' > hello.sh
echo 'echo hello' >> hello.sh
Pass when the file exists and starts with "#!/bin/bash".
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