=over =item srand EXPR X<srand> X<seed> X<randseed> =item srand Sets and returns the random number seed for the L<C<rand>|/rand EXPR> operator. The point of the function is to "seed" the L<C<rand>|...

=over =item splice ARRAY,OFFSET,LENGTH,LIST X<splice> =item splice ARRAY,OFFSET,LENGTH =item splice ARRAY,OFFSET =item splice ARRAY Removes the elements designated by OFFSET and LENGTH from an arra...

=over =item shift ARRAY X<shift> =item shift Removes and returns the B<first> element of an array. This shortens the array by one and moves everything down. my @arr = ('cat', 'dog'); my $item = shi...

=over =item atan2 Y,X X<atan2> X<arctangent> X<tan> X<tangent> Returns the arctangent of Y/X in the range -PI to PI. For the tangent operation, you may use the L<C<Math::Trig::tan>|Math::Trig/B<tan...

=over =item lcfirst EXPR X<lcfirst> X<lowercase> =item lcfirst Returns the value of EXPR with the first character lowercased. This is the internal function implementing the C<\l> escape in double-q...

=over =item __LINE__ X<__LINE__> A special token that compiles to the current line number. It can be altered by the mechanism described at L<perlsyn/"Plain Old Comments (Not!)">. =back

=over =item getpwnam NAME X<getpwnam> X<getgrnam> X<gethostbyname> X<getnetbyname> X<getprotobyname> X<getpwuid> X<getgrgid> X<getservbyname> X<gethostbyaddr> X<getnetbyaddr> X<getprotobynumber> X<...

=over =item getpwnam NAME X<getpwnam> X<getgrnam> X<gethostbyname> X<getnetbyname> X<getprotobyname> X<getpwuid> X<getgrgid> X<getservbyname> X<gethostbyaddr> X<getnetbyaddr> X<getprotobynumber> X<...

=over =item prototype FUNCTION X<prototype> =item prototype Returns the prototype of a function as a string (or L<C<undef>|/undef EXPR> if the function has no prototype). FUNCTION is a reference to...

=over =item setpriority WHICH,WHO,PRIORITY X<setpriority> X<priority> X<nice> X<renice> Sets the current priority for a process, a process group, or a user. (See L<setpriority(2)>.) Raises an excep...