$rec = join(':', $login,$passwd,$uid,$gid,$gcos,$home,$shell);
-See L</split>.
+Beware that unlike C<split>, C<join> doesn't take a pattern as its
+first argument. Compare L</split>.
=item keys HASH
for integer
l interpret integer as C type "long" or "unsigned long"
h interpret integer as C type "short" or "unsigned short"
+ If no flags, interpret integer as C type "int" or "unsigned"
There is also one Perl-specific flag:
If Perl understands "quads" (64-bit integers) (this requires
either that the platform natively supports quads or that Perl
-has been specifically compiled to support quads), the flags
+has been specifically compiled to support quads), the characters
d u o x X b i D U O