magic numbers and setuid shell scripts

[Tim Smith]

#!/dev/person/you

  Setuid Bourne shell scripts may protect themselves against
strange values of IFS by starting out with the line

	IFS=

This will work even if IFS is set to something like `I' or `F'
because the shell does blank interpretation after it does
variable assignments and substitutions.

				Tim Smith
	   {decvax,ucbvax}!ihnp4!sdcrdcf!trwrb!wlbr!callan!tim