How to print #!/bin/bash using echo command [duplicate]

Answer 1

! is magic in a default interactive bash session, but not in scripts (set +H to disable in an interactive prompt). In any case:

echo '#!/bin/bash'

Answer 2

printf should work too:

printf '#!/bin/bash\n'

Answer 3

Or with no quotes and escaping the # and the !:

echo \#\!/bin/bash