Bash Array Splice

This week I’ve published a Bash submodule that removes elements from Bash array. Check the documentation for detailed getting started and usage instructions, the source code is available on GitHub.

Bash Variables

_module_name='array-splice'
_module_https_url="https://github.com/bash-utilities/array-splice.git"
_module_base_dir='modules'
_module_path="${_module_base_dir}/${_module_name}"

Bash Submodule Commands

cd "<your-git-project-path>"

mkdir -vp "${_module_base_dir}"

git submodule add --name "${_module_name}"\
                  -b main\
                  "${_module_https_url}"\
                  "${_module_path}"

Write a script that makes use of array_splice function…

#!/usr/bin/env bash


## Find directory that this script resides in
__SOURCE__="${BASH_SOURCE[0]}"
while [[ -h "${__SOURCE__}" ]]; do
    __SOURCE__="$(find "${__SOURCE__}" -type l -ls | sed -n 's@^.* -> \(.*\)@\1@p')"
done
__DIR__="$(cd -P "$(dirname "${__SOURCE__}")" && pwd)"


## Provides array_splice '<list_ref>' '<item>' '<offset>'
source "${__DIR__}/modules/array-splice/array-splice.sh"


list=(
    --beginning 'foo'
    --middle 'bar'
    --end 'spam'
)

printf '${list[*]} -> ( %s )\n' "${list[*]}"

echo "#> array_splice --target 'list' --element '--middle' --offset 1"
array_splice --target 'list' --element '--middle' --offset 1

printf '${list[*]} -> ( %s )\n' "${list[*]}"
## Expected output
#> ${list[*]} -> ( --beginning foo --end spam )