testing a variable matches a pattern
# starts with a 1.*
[[ $AWS_CLI_VERSION =~ '^1.*' ]] && export LIBSH_AWS_CMD="aws"
# starts with a 2.*
[[ $AWS_CLI_VERSION =~ '^2.*' ]] && export LIBSH_AWS_CMD="aws --no-cli-pager"
multiple testing of variables
[[ ! -z ${ENABLE_GIT_COMMIT_TEMPLATE} && -f $ENABLE_GIT_COMMIT_TEMPLATE ]] || \
libsh__debug "Missing file for git commit template"
creating vars name based on vars
# set a variable
local fn="custom_name"
# set the template of the var
local fn_varname="LIBSH_status_fn_${fn}"
# set the new var
# in this case, it should be "LIBSH_status_fn_custom_name" contains the value "loaded"
#
# note: the fn_varname is required to be a single var in the printf. You cannot put in
# your own vars and mash them together
printf -v "$fn_varname" '%s' "loaded" && \