Literal backslash in EDITOR environment variable

[marcosfrm]

# strace -E EDITOR='sed -rie s/^\(foo\)/waldo\1/' -fs 512 visudo |& grep ' execve'
[pid  1452] execve("/usr/bin/sed", ["sed", "-rie", "s/^(foo)/waldo1/", "--", "/etc/sudoers.tmp"], 0x7ffe3a0ab9f8 /* 32 vars */) = 0
                                                    ^^^^^^^^^^^^^^^^

# strace -E EDITOR='sed -rie s/^\\(foo\\)/waldo\\1/' -fs 512 visudo |& grep ' execve'
[pid  1461] execve("/usr/bin/sed", ["sed", "-rie", "s/^(foo)/waldo1/", "--", "/etc/sudoers.tmp"], 0x7fff4be17b78 /* 32 vars */) = 0
                                                    ^^^^^^^^^^^^^^^^

# strace -E EDITOR='sed -rie s/^\\\\(foo\\\\)/waldo\\\\1/' -fs 512 visudo |& grep ' execve'
[pid  1467] execve("/usr/bin/sed", ["sed", "-rie", "s/^(foo)/waldo1/", "--", "/etc/sudoers.tmp"], 0x7ffd98797d38 /* 32 vars */) = 0
                                                    ^^^^^^^^^^^^^^^^

Is there a way to pass a literal backslash?

sudo-1.9.8-5.p2.fc36.x86_64

[millert]

Thanks for the bug report, this is fixed by e66f34d