I am trying to open a big file and go through line by line while
limiting the resource on the system.
What is the best way to do it?
Does below read the entire file and store them in memory(not good if
that's the case)..
open(SOURCE, "/tmp/file") || die "not there: $!\n";
while (<SOURCE>) {
## do something
}
sometime ago I saw somewhere it had something like below which look like
it was reading them and going through line by line without storing them
all in memory.
I just cannot remember the syntax exactly.
open(SOURCE, " /tmp/file |") || die "not there: $!\n";
while (<>) {
## do something
}
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