I have the following script
#!/usr/bin/Rscript
print ("shebang works")
in a file called shebang.r. When I run it from command line using Rscript it works
$ Rscript shebang.r
but when I run it from the command line alone
$ shebang.r
It doesn't work. shebang.r command not found.
If I type (based on other examples I've seen)
$ ./shebang.r
I get permission denied.
Yes, Rscript is located in /usr/bin directory
Make the file executable.
chmod 755 shebang.r