opt/bin/became

   1 #!/bin/bash
   2
   3 file="${TMPDIR:-/tmp}/$SUDO_USER.became.$USER.$RANDOM.$$"
   4 ( umask 077; cat > "$file"; echo "/bin/rm -f '$file'" >> "$file" )
   5 exec </dev/tty /bin/bash --rcfile "$file"
   6 # Fall back to the shell.
   7 exec </dev/tty /bin/bash
   8 exit 111