Sample and template bash scripts to use

example_bash_with_arguments

This script enables a debug cli option "--debug" or "--help" for script help.
The --helpoption read from script head everything beginning #/ as help documentation.

Also has an option to provide arguments via cli /src=path
or via environment variable export src=path befor running the script.
If not the sample src is given, it prompt for input.

This sript will also produce an error output,
if something is failing and show's the line numnber,
as well the error message / cause.
By default logging is enabled to write a logfile under /tmp/_.log

./example_bash_with_arguments.sh 
Variable ARG1 with Value=commandline_argument_1
start script
Please enter source path incl filename: asdf

now a command which produce an example error


./example_bash_with_arguments.sh: Zeile 136: what_ever_none_existing_command_to_produce_an_error: Kommando nicht gefunden.
[example_bash_with_arguments] [ERROR] 30.09.2021 12:17:34  Error with command at line: 136
what_ever_none_existing_command_to_produce_an_error
[example_bash_with_arguments] [ERROR] 30.09.2021 12:17:34  Script will abort

but logging can be disabled see --help.

example_bash_with_read_default_settings_file

This script reads a config file with variables defined into it that it can be used inside the script.
This is mainly done with this sample variable:
[ -z ${VOLUMES+x} ] && . volumes.conf