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Re^4: Help with fstab

by Dorficus (Initiate)
on Jan 20, 2012 at 12:21 UTC ( #948950=note: print w/replies, xml ) Need Help??


in reply to Re^3: Help with fstab
in thread Help with fstab

Nvm I solved that problem myself, I was just being stupid :p
Now the problem is that I only want certain information from the fstab, but I print all of the info from fstab.
Any clue on how to only print the information you want?

open FILE, "</mnt/etc/fstab"; my @lines = <FILE>; print @lines;

That's how I extract the information from it

Replies are listed 'Best First'.
Re^5: Help with fstab
by roboticus (Chancellor) on Jan 20, 2012 at 13:07 UTC

    Dorficus:

    If I recall correctly, /etc/fstab uses whitespace to delimit the fields, so you should be able to do something like:

    open FILE, '<', "/mnt/etc/fstab"; my @lines = <FILE>; for (@lines) { my @fields = split /\s+/, $_; print "First column: $fields[0], Third column: $fields[2].\n"; }

    ...roboticus

    When your only tool is a hammer, all problems look like your thumb.

      This really helped, it got rid of a lot of unnessecary information, but do you have any clue on how to do it vertical as well?

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[shmem]: yes, at least for the result in @foo
[shmem]: but the results of both operations are different.
[shmem]: result := the discarded result (what's leftmost of the statement)
[shmem]: push returns the number of elements in @foo, the assignment returns all the elements in the (renewed) @foo
[Lady_Aleena]: Sanity check please? push @line, ref($list_addition ) eq 'ARRAY' ? @$list_addition : $list_addiction; # so I don't have the change existing uses of the sub.

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