前面的答案提到了命令trash-cli和rmtrash。在Ubuntu 18.04上，默认情况下都找不到这两个命令，但是命令gio是。命令gio help trash输出：
Usage:
gio trash [OPTION…] [LOCATION...]
Move files or directories to the trash.
Options:
-f, --force Ignore nonexistent files, never prompt
--empty Empty the trash
我gio trash FILENAME在命令行上使用进行了测试，它的工作原理就像我在文件浏览器中选择文件并单击DEL按钮一样：该文件已移动到桌面的“废纸folder”文件夹中。（即使我没有使用该-f选项，该命令也不会提示您进行确认。）
以这种方式删除文件是可逆的，同时为了安全起见，重新定义rm要方便得多rm -i，并且必须确认每个删除操作，如果您不小心确认了不应该删除的删除操作，这仍然使您不走运。
我添加alias tt='gio trash'了别名定义文件；tt是“废纸To”的助记符。
在2018-06-27上的编辑中添加：在服务器计算机上，没有等效的废纸 a目录。我编写了以下Bash脚本来完成这项工作；在台式计算机上，它使用gio trash，在其他计算机上，将作为参数给出的文件移动到它创建的回收站目录中。脚本于2019-09-05更新。
#!/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过，但是直到您激发了我的好奇心，才从命令行恢复它。链接问题的答案可能会有所帮助。