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I've read a few posts such as Is there a standard place for placing custom Linux scripts? , Where should I put my bash scripts , but I still am getting an error that my script isn't being found in bash.

I've placed my script (Named Wandering_Echo) in /usr/local/Custom_Programs and symlinked it into /bin, /usr/local/bin, and /usr/local/sbin, but when I try running sudo Wandering_Echo, I get this error: 

sarah@LesserArk:/usr/local/Custom_Programs$ sudo Wandering_Echo ?
sudo: Wandering_Echo: command not found

Not sure what I'm doing wrong as it is in the super-user bin directory.

Wandering_Echo does some low level filesystem operations using BTRFS, so it needs root to run. Edit 0: Wandering_Echo does run as regular user, just not as super-user from terminal.

EDIT 1: 

sarah@LesserArk:/usr/local/Custom_Programs$ ls -l /usr/local/bin/Wandering_Echo /usr/local/Custom_Programs/Wandering_Echo 
lrwxrwxrwx 1 root root 14 Aug 14 15:22 /usr/local/bin/Wandering_Echo -> Wandering_Echo
-rw-r--r-- 1 root root 96 Aug 14 13:09 /usr/local/Custom_Programs/Wandering_Echo

&

sarah@LesserArk:~$ sudo bash -c 'echo $PATH'
[sudo] password for sarah: 
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
Sarah Szabo
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1 Answers1

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There are two problems:

1.

lrwxrwxrwx 1 root root 14 Aug 14 15:22 /usr/local/bin/Wandering_Echo -> Wandering_Echo

If you access a symlink its target value is taken as a path relative to the symlink's parent folder (or as an absolute path if it starts with /). So this symlink doesn't point to /usr/local/Custom_Programs/Wandering_Echo but to itself, which isn't that useful. Remove it and use

sudo ln -s /usr/local/Custom_Programs/Wandering_Echo /usr/local/bin/Wandering_Echo

to create it properly. Check the other symlinks, too.

2.

-rw-r--r-- 1 root root 96 Aug 14 13:09 /usr/local/Custom_Programs/Wandering_Echo

As you already wrote in the comments the execute flags are missing here. Use

sudo chmod u+x /usr/local/Custom_Programs/Wandering_Echo

to make it executable for root only. Replace u+x with a+x to make it executable for all users.

Florian Diesch
  • 87,389