V10/man/man1/rm.1

.TH RM 1
.CT 1 dirs files
.SH NAME
rm \- remove (unlink) files
.SH SYNOPSIS
.B rm
[
.B -fri
]
.I file ...
.SH DESCRIPTION
.I Rm
removes directory entries.
If an entry was the last link to a file, the file
is destroyed.
If an entry is a directory it is removed only if empty.
Removal of a file requires write permission in its directory,
but neither read nor write permission on the file itself.
.PP
If a file lacks write permission
and the the standard input is a terminal,
a query is written to the standard output and
a line is read from the standard input.
If that line begins with 
.L y
the file is deleted,
otherwise the file remains.
The options are
.TP
.B -f
(force)
Ask no questions about unwritable files and report no errors.
.TP
.B -r
Recursively delete the
entire contents of a directory
and the directory itself.
.TP
.B -i
(interactive) 
Ask whether to delete each file,
and, under
.BR -r ,
whether to examine each directory.
If the first character of the response is
.LR y ,
the answer is yes;
otherwise the answer is no.
.SH "SEE ALSO"
.IR unlink (2)
.SH DIAGNOSTICS
It is forbidden to remove the file
.L ..
merely to avoid the
antisocial consequences of inadvertently doing something like
.LR "rm -r .*" .