Why does bash set $? (exit status) to non-zero on Ctrl-C or Ctrl-Z?
From the bash manual, on the $? variable:
exit-status
How does one extract a command’s exit status into a variable?
I started learning Bash a couple of days ago.
Linux kernel action upon init process exiting
Say I am writing my own init program running on a Linux kernel.
How do I look up exit codes for applications?
I’m having difficulty locating a comprehensive up-to-date list of error codes from Bash. e.g.:
The paradox of logical AND (&&) and OR (||) in a bash script to check the successful execution of command (exit code of 0 is interpreted as true)
So I well understand that exit code of 0 is considered success in running of a program. Then we use this in bash scripts with logical AND and OR to run the next program based on the exit status of the first program. A good example can be found here: https://unix.stackexchange.com/a/187148/454362
What return/exit values can I use in bash functions/scripts?
I want to know what return values we can use that will not be mistaken by for ex. SIGINT?
Return code for curl used in a command substitution
I’ve script as below :-
(edited)
Assignments are like commands with an exit status except when there’s command substitution?
See the following examples and their outputs in POSIX shells: