$ beep; echo $?

Command 'beep' not found, but can be installed with:

apt install beep
Please ask your administrator.

127

$ cat test.sh
#!/usr/bin/env bash
echo $?

The expected output of my script should be “127”.

Why, then, after executing the bash script in the same manner, the return code printed is not what we expect?

$ beep; ./test.sh

Command 'beep' not found, but can be installed with:

apt install beep
Please ask your administrator.

0