Linux rm Command: rm -rf Options and Deleting Without Confirmation

Test environmentRHEL familyAlmaLinux 9.8root accountChecked 2026-10-05

The rm commanddeletes files immediately, without sending them to a trash folder. rm is short for remove and deletes files and directories. This post covers basic usage, the options, and why the root directory survives even if you run [rm -rf /].

On AlmaLinux 9.8 the root account comes with [alias rm='rm -i'] by default, so it asks for confirmation before deleting. For Linux systems that do not have this setting, the post also shows how to add the alias yourself.

TOC

2-minute read

✅ Basic Usage

The basic syntax is as follows.

rm -options target: file or directory

A file is deleted by name alone; a directory is deleted only when you add the -r option.

# Delete a file
rm file1
# Delete several files
rm file1 file2
# Delete a directory and everything in it
rm -r dir1/
# Delete an empty directory
rm -d dir1/

~]# rm dir1/
rm: cannot remove 'dir1/': Is a directory

If you name a directory without an option, it is not deleted, as shown above.

Deleting a symbolic link removes only the link; the file it points to stays in place. To check before and after deleting, use the ls commandalongside it.

✅ rm -rf: Deleting Without Confirmation

Running the rm command asks [remove regular file] because, on the root account, rm runs through the [rm -i] alias.

~]# rm file1
rm: remove regular file 'file1'? y
~]# alias rm
alias rm='rm -i'

Deleting a directory with the -r option asks for confirmation on entering each directory and for every file, which gets tedious as the number of files grows.

~]# rm -r logs/
rm: descend into directory 'logs/'? y
rm: remove regular file 'logs/access.log'? y
rm: remove regular empty file 'logs/error.log'? y
rm: remove directory 'logs/'? y

In that case, add the -f option: it deletes without confirmation and reports no error even when the file does not exist.

rm -rf logs/

Putting a backslash [\] in front of the command to bypass the alias, or putting [yes |] in front so that y is entered at every prompt, gives the same result.

\rm -r logs/
yes | rm -r logs/

✅ rm Command Options & Simulator

Option	Description
-f	--forceDeletes without confirmation and reports no error for files that do not exist
-i	Asks the user for confirmation before every deletionalias rm='rm -i'
-I(capital i)	Asks only once when there are four or more files or when used with -r
-r, -R	--recursiveDeletes a directory together with its subdirectories and files
-d	--dirDeletes an empty directory
-v	--verbosePrints each deleted file and directory on its own line
--preserve-root	Does not delete the root directory (/) (default)
--no-preserve-root	Turns off the protection of the root directory (/)

rm Command Simulatoralias rm='rm -i'

[root@server work]#

It runs only inside your browser and never touches real files. Type rm with different options and check the result with ls and cat. Deleted files come back when you press [Start over]. Use the ↑↓ keys to recall earlier commands, and type uknew help to list the available commands.

✅ rm -rf /: Protecting the Root Directory

In hosting work, files that should not be deleted sometimes get deleted. Most of them can be restored from a backup, but once the root directory is deleted, recovery is a hassle even with a snapshot. I have heard several times of cases where a mistyped rm -rf command could not be undone.

The rm command applies the [-⁠-preserve-root] option by default, so the root directory is not deleted even if you run [rm -rf /].

~]# rm -rf /
rm: it is dangerous to operate recursively on '/'
rm: use --no-preserve-root to override this failsafe

It does not stop [rm -rf /*], however. The shell replaces [/*] with directory names such as /bin, /etc and /home before passing them on, so the rm command deletes each of those directories rather than [/].

A fresh AlmaLinux 9.8 install has the -i aliases for the rm, cp and mv commands in [/root/.bashrc], as shown below. Regular user accounts do not have these aliases.

~]# grep alias /root/.bashrc
alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

On an account or a Linux system without the alias, add one line at the bottom of [~/.bashrc] and reload it.

# Add at the bottom of ~/.bashrc
alias rm='rm -i'
# Reload it
source ~/.bashrc

🔝 Linux Commands

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