Вопрос по Перлу

← →
anod (2001-12-12 19:42) [0]

Помогите,
как добавлять текст в начало файла.

← →
Дмитрий (2001-12-13 12:43) [1]

open(<IN>, "a.txt");
my @in = (<IN>);
my @ar = (
"First row",
"Second row"
);
my $str = "Third row";
unshift(@in, $str);
unshift(@in, @ar); #unshift(@in, $str, @ar);
open(<IN>, ">a.txt");
print IN @in;
close(IN);

← →
anod (2001-12-13 19:59) [2]

2 Дмитрий
Спасибо, а что такое unshift

← →
Kapusto (2001-12-14 09:36) [3]

shift наоборот :)
unshift ARRAY,LIST Does the opposite of a shift. Or the opposite of a push, depending on how you look at it. Prepends list to the front of the array, and returns the new number of elements in the array. unshift(ARGV, "-e") unless $ARGV[0] =~ /^-/; Note the LIST is prepended whole, not one element at a time, so the prepended elements stay in the same order. Use reverse to do the reverse.

btw, должно быть
open(IN, "a.txt");

Вопрос по Перлу Найти похожие ветки