我在截取我正在阅读的内容上方的行的内容时遇到问题$lines[0]，如下foreach循环
my $IN_DIR = "/tmp/appo/log"; # Input Directories
my $jumprow = '<number of row to skip>'; # This is a value
foreach my $INPUT ( glob( "$IN_DIR/logrotate_*.log" ) ) {
open( my $fh, '<', $INPUT ) or die $!;
while ( <$fh> ) {
next unless $. > $jumprow;
my @lines = split /\n/;
my $i = 0;
foreach my $lines ( @lines ) {
if ( $lines[$i] =~ m/\A#\d.\d.+#\d{4}\s\d{2}\s\d{2}\s\d{2}:\d{2}:\d{2}:\d{3}#\+\d+#\w+#\/\w+\/\w+\/Authentication/ ) {
# Shows only LOGIN/LOGOUT access type and exclude GUEST users
if ( $lines[ $i + 2 ] =~ m/Login/ || $lines[ $i + 2 ] =~ m/Logout/ && $lines[ $i + 3 ] !~ m/Guest/ ) {
my ( $y, $m, $d, $time ) = $lines[$i] =~ /\A#\d.\d.+#(\d{4})\s(\d{2})\s(\d{2})\s(\d{2}:\d{2}:\d{2}:\d{3})/;
my ( $action ) = $lines[ $i + 2 ] =~ /\A(\w+)/;
my ( $user ) = $lines[ $i + 3 ] =~ /\w+:\s(.+)/;
print "$y/$m/$d;$time;$action;$user\n";
}
}
else {
next; # Is this next technically necessary according to you?
}
$i++;
}
}
close( $fh );
}
该Tie::File
模块可以帮助我
my $IN_DIR = "/tmp/appo/log"; # Input Directories
my $jumprow = '<number of row to skip>'; # This is a value
foreach my $INPUT ( glob( "$IN_DIR/logrotate_*.log" ) ) {
tie @lines, 'Tie::File', $INPUT, mode => O_RDONLY;
or die $!;
my $i = $.;
next unless $i > $jumprow;
foreach my $lines ( @lines ) {
if ( $lines[$i] =~ m/\A#\d.\d.+#\d{4}\s\d{2}\s\d{2}\s\d{2}:\d{2}:\d{2}:\d{3}#\+\d+#\w+#\/\w+\/\w+\/Authentication/ ) {
# Shows only LOGIN/LOGOUT access type and exclude GUEST users
if ( $lines[ $i + 2 ] =~ m/Login/ || $lines[ $i + 2 ] =~ m/Logout/ && $lines[ $i + 3 ] !~ m/Guest/ ) {
my ( $y, $m, $d, $time ) = $lines[$i] =~ /\A#\d.\d.+#(\d{4})\s(\d{2})\s(\d{2})\s(\d{2}:\d{2}:\d{2}:\d{3})/;
my ( $action ) = $lines[ $i + 2 ] =~ /\A(\w+)/;
my ( $user ) = $lines[ $i + 3 ] =~ /\w+:\s(.+)/;
print "$y/$m/$d;$time;$action;$user\n";
}
}
else {
next; # Is this next technically necessary according to you?
}
$i++;
}
}
你能告诉我我的声明Tie::File是否正确吗？这只是我的主脚本的一部分，如以下指南mcve 所示
实际上没有tie，我的主脚本仅适用于$lines[0]，它不会从$lines[$i+2]或中获取价值$lines[$i+3]