FileSystem
SYTNAX
open HANDLE, [expr]
open HANDLE, [file]
open (HANDLE, MODE, [FILE])
DESC
file を開いて Handle へ関連づける
RET
!0 : OK
NODEF : FAIL
SYTNAX
open HANDLE, > [expr]
open HANDLE, > [file]
DESC
file へ出力
SYTNAX
close file
DESC
file を閉じる
RET
!0 : OK
NODEF : FAIL
MODE
< : Read
> : Write
>> : Append
|COMMAND : 出力を Pipe する
COMMAND| : PIPE して入力をとる
open fp, "foo.txt";
open fp, ">foo.txt";
<>
while ( $line <fp> ) {
print $line;
}
close( fp )
STDIN
STDOUT
STDERR
ARGV : CommandLine Option