Add a description of the restrictions that red(1) imposes to users,
and a warning that this "restricted mode" can be bypassed easily by using symlinks, so that users don't depend too much on it. PR: docs/35940 Submitted by: Gary W. Swearingen <swear@blarg.net> Reviewed by: jmallett MFC after: 1 week
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=98780
31
bin/ed/ed.1
31
bin/ed/ed.1
@ -12,19 +12,36 @@
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.Op Fl sx
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.Op Fl p Ar string
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.Op Ar file
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.\" .LP
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.\" red [-] [-sx] [-p \fIstring\fR] [\fIfile\fR]
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.LP
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.Nm red
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.Op Fl
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.Op Fl sx
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.Op Fl p Ar string
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.Op Ar file
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.Sh DESCRIPTION
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The
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.Nm
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utility is a line-oriented text editor.
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It is used to create, display, modify and otherwise manipulate text
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files.
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.\" .B red
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.\" is a restricted
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.\" .BR ed :
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.\" it can only edit files in the current
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.\" directory and cannot execute shell commands.
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When invoked as
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.Nm red ,
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the editor runs in
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.Qq restricted
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mode, in which the only difference is that the editor restricts the
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use of filenames which start with
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.Ql \&!
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(interpreted as shell commands by
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.Nm ed )
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or contain a
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.Ql \&/ .
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Note that editing outside of the current directory is only prohibited
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if the user does not have write access to the current directory.
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If a user has write access to the current directory, then symbolic
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links can be created in the current directory, in which case
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.Nm red
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will not stop the user from editing the file that the symbolic link
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points to.
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.Pp
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If invoked with a
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.Ar file
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