前の回答では、コマンドtrash-cliとに言及していますrmtrash。Ubuntu 18.04ではこれらのどちらもデフォルトでは見つかりませんが、コマンドgioはあります。コマンドgio help trash出力：
Usage:
gio trash [OPTION…] [LOCATION...]
Move files or directories to the trash.
Options:
-f, --force Ignore nonexistent files, never prompt
--empty Empty the trash
gio trash FILENAMEコマンドラインでテストしましたが、ファイルブラウザーでファイルを選択して[DEL]ボタンをクリックしたように機能します。ファイルはデスクトップの[ゴミ箱]フォルダーに移動されます。（この-fオプションを使用しなかった場合でも、コマンドは確認を求めません。）
この方法でファイルを削除することは元に戻すことができますrmがrm -i、安全のために再定義し、各削除を確認するよりも便利ですが、誤って削除すべきでないことを確認した場合は運が悪くなります。
alias tt='gio trash'エイリアス定義ファイルに追加しました。ttTo Trashのニーモニックです。
2018-06-27の編集時に追加：サーバーマシンでは、ゴミ箱に相当するものはありません。仕事をする次のBashスクリプトを作成しました。デスクトップマシンではgio trash、を使用し、他のマシンでは、パラメーターとして指定されたファイルを、作成したゴミ箱ディレクトリに移動します。スクリプトは2019-09-05に更新されました。
#!/bin/bash
#
# move-to-trash
#
# Teemu Leisti 2019-09-05
#
# This script moves the files given as arguments to the trash directory, if they
# are not already there. It works both on (Gnome) desktop and server hosts.
#
# The script is intended as a command-line equivalent of deleting a file from a
# graphical file manager, which, in the usual case, moves the deleted file(s) to
# a built-in trash directory. On server hosts, the analogy is not perfect, as
# the script does not offer the functionality of restoring a trashed file to its
# original location, nor that of emptying the trash directory; rather, it offers
# an alternative to the 'rm' command, giving the user the peace of mind that
# they can still undo an unintended deletion before emptying the trash
# directory.
#
# To determine whether it's running on a desktop host, the script tests for the
# existence of the gio utility and of directory ~/.local/share/Trash. In case
# both exist, the script relies on the 'gio trash' command. Otherwise, it treats
# the host as a server.
#
# There is no built-in trash directory on server hosts, so the first invocation
# of the script creates directory ~/.Trash/, unless it already exists.
#
# The script appends a millisecond-resolution time stamp to all the files it
# moves to the trash directory, both to inform the user of the time of the
# deletion, and to avoid overwrites when moving a file to trash.
#
# The script will not choke on a nonexistent file. It outputs the final
# disposition of each argument: does not exist, was already in trash, or was
# moved to trash.
gio_command_exists=0
command -v gio > /dev/null 2>&1
if (( $? == 0 )) ; then
gio_command_exists=1
fi
# Exit on using an uninitialized variable, and on a command returning an error.
# (The latter setting necessitates appending " || true" to those arithmetic
# calculations and other commands that can return 0, lest the shell interpret
# the result as signalling an error.)
set -eu
is_desktop=0
if [[ -d ~/.local/share/Trash ]] && (( gio_command_exists == 1 )) ; then
is_desktop=1
trash_dir_abspath=$(realpath ~/.local/share/Trash)
else
trash_dir_abspath=$(realpath ~/.Trash)
if [[ -e $trash_dir_abspath ]] ; then
if [[ ! -d $trash_dir_abspath ]] ; then
echo "The file $trash_dir_abspath exists, but is not a directory. Exiting."
exit 1
fi
else
mkdir $trash_dir_abspath
echo "Created directory $trash_dir_abspath"
fi
fi
for file in "$@" ; do
file_abspath=$(realpath -- "$file")
file_basename=$(basename -- "$file_abspath")
if [[ ! -e $file_abspath ]] ; then
echo "does not exist: $file_abspath"
elif [[ "$file_abspath" == "$trash_dir_abspath"* ]] ; then
echo "already in trash: $file_abspath"
else
if (( is_desktop == 1 )) ; then
gio trash "$file_abspath" || true
else
# The name of the moved file shall be the original name plus a
# millisecond-resolution timestamp.
move_to_abspath="$trash_dir_abspath/$file_basename-$(date '+%Y-%m-%d-at-%H-%M-%S.%3N')"
while [[ -e "$move_to_abspath" ]] ; do
# Generate a new name with a new timestamp, as the previously
# generated one denoted an existing file.
move_to_abspath="$trash_dir_abspath/$file_basename-$(date '+%Y-%m-%d-at-%H-%M-%S.%3N')"
done
# We're now almost certain that the file denoted by name
# $move_to_abspath does not exist, as for that to be the case, an
# extremely unlikely run condition would have had to take place:
# some other process would have had to create a file with the name
# $move_to_abspath after the execution of the existence test above.
# However, to make absolute sure that moving the file to the trash
# directory will always be successful, we shall give the '-f'
# (force) flag to the 'mv' command.
/bin/mv -f "$file_abspath" "$move_to_abspath"
fi
echo "moved to trash: $file_abspath"
fi
done
gvfs-trash過去に使用したことがありますが、好奇心を刺激するまでコマンドラインから復元する必要はありませんでした。リンクされた質問への答えは役に立つかもしれません。