I created a shell script "/etc/aaa" on Openwrt which contains the following code: #!/bin/sh echo "Hello World!"
I also used this command to ensure the proper permissions:
chmod 777 /etc/aaa
Upon executing with any of the below 2 commands
sh /etc/aaa
or
ash /etc/aaa
it works well and prints "Hello World". The problem occurs when I try to execute it with this command:
/etc/aaa
where I get this error:
-ash: /etc/aaa: not found
Can anyone please explain why this is happening? What am I missing here?
Thanks for Charles Duffy's comment. It's really the CR LF problem. Though i open the file in my linux virtual machine, since it has been modified in Windows. so enven in linux, the sublime text editor i use will think it's a windows file and use crlf as newline ending.
So ,just replace crlf with lf , the problem solved.