1.8 KiB
Error Handling
Implement various kinds of error handling and resource management.
An important point of programming is how to handle errors and close resources even if errors occur.
This exercise requires you to handle various errors. Because error handling is rather programming language specific you'll have to refer to the tests for your track to see what's exactly required.
Run the tests with:
bats error_handling_test.sh
After the first test(s) pass, continue by commenting out or removing the
[[ $BATS_RUN_SKIPPED == true ]] || skip
annotations prepending other tests.
To run all tests, including the ones with skip annotations, run:
BATS_RUN_SKIPPED=true bats error_handling_test.sh
External utilities
Bash is a language to write "scripts" -- programs that can call
external tools, such as
sed,
awk,
date
and even programs written in other programming languages,
like Python.
This track does not restrict the usage of these utilities, and as long
as your solution is portable between systems and does not require
installation of third party applications, feel free to use them to solve
the exercise.
For an extra challenge, if you would like to have a better understanding
of the language, try to re-implement the solution in pure Bash,
without using any external tools. Note that there are some types of
problems that bash cannot solve, such as performing floating point
arithmetic and manipulating dates: for those, you must call out to an
external tool.
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.