added nautilus scripts (needs nautilus-python package)

.local/share/nautilus/scripts/Hash and checksum/List CRC32

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+# Source the script 'common-functions.sh'.
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
+ROOT_DIR=$(grep --only-matching "^.*scripts[^/]*" <<<"$SCRIPT_DIR")
+source "$ROOT_DIR/common-functions.sh"
+
+_main() {
+    local input_files=""
+    local output_dir=""
+
+    # Execute initial checks.
+    _check_dependencies "command=rhash"
+    _display_wait_box "2"
+    input_files=$(_get_files "par_type=file; par_recursive=true")
+
+    # Execute the function '_main_task' for each file in parallel.
+    _run_task_parallel "$input_files" "$output_dir"
+
+    local std_output=""
+    std_output=$(_storage_text_read_all)
+    std_output=$(_text_sort "$std_output")
+    # shellcheck disable=SC2001
+    std_output=$(sed "s|\(.*\)$FIELD_SEPARATOR\(.*\)|\2$FIELD_SEPARATOR\1|g" <<<"$std_output")
+
+    _display_list_box "$std_output" "--column=CRC32;--column=File"
+}
+
+_main_task() {
+    local input_file=$1
+    local output_dir=$2
+    local std_output=""
+    local nl_escaped="\\\n"
+
+    # Run the main process.
+    std_output=$(rhash --printf="%c  %p\n" -- "$input_file" 2>/dev/null)
+    std_output=$(_text_remove_pwd "$std_output")
+
+    # Convert filenames with '\n'.
+    if [[ "$std_output" == *$'\n'* ]]; then
+        std_output=$(sed -z "s|\n|$nl_escaped|g; s|$nl_escaped$||g" <<<"$std_output")
+        std_output="\\$std_output"
+    fi
+
+    # shellcheck disable=SC2001
+    std_output=$(sed "s|\([^ ]*\)\s*\(.*\)|\2$FIELD_SEPARATOR\1|g" <<<"$std_output")
+
+    _storage_text_write_ln "$std_output"
+}
+
+_main "$@"