"Command not found" when running shell script with ./

March 10, 2023

In Mac OSX 13, Terminal, I am trying to run a shell script, ./writeimage.sh

I cd into the folder,
I see the writeimage.sh file is there with ls -l
I see it’s permissions are set correctly to 700 (rwx for me)
I use the ./ prefix because this script is not in the Path.
I stick a sudo in front, in case there is some privilege issue.

Terminal returns "sudo: writeimage.sh: command not found"

I’m out of ideas – anyone know why this is happening? What am I missing?
Thanks for any help!

-----MacBook-Air Downloads % ls -l
total 543176
..
..
-rwx------@ 1 lf  staff       4402 10 Mar 22:41 writeimage.sh

----Downloads % sudo writeimage.sh -d /dev/disk5s1 -i "motioneyeos-raspberrypi-20200606.img.xz"
Password:
sudo: writeimage.sh: command not found

>Solution :

Check the shebang line:

The shebang line at the top of the script specifies which interpreter should be used to run the script. Make sure this is correct for your system.
For example, if you are using bash, the shebang line should be #!/bin/bash.