#$^I=""; #$^I=".bak"; sub replace(){ my $para = "$dir/$_[0]"; open MYFILE,"$para" or die "cannot open file $para $!\n"; while(<MYFILE>{ s/UI_EM/$newpar/g; print; } }
i just want to open a TXT file and replace some words,and then save it to the TXT file.i don't want any BAK files. But $^I does not work .whether it is "",or ".BAK" ! i am chinese guy. My english is not very good.if there anything wrong above,please tell me. thanks .

In reply to $^I why this symbol does not work ? by kingwrcy

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