So me and a co-worker are trying to do a very simple task. We want to do some file manipulation on a single file and for now we are testing some things from command line which is where we found this lil strangity (this a word?).

Given a known filename and due to the way we are going to run the finished product, we want to take that filename from stdin and work it a lil. So, we did the following:

For now, "saveme" is our test file (and its a blank touched file).


ls saveme | perl -n -e '

while ( <> ) {
    chomp;
    tr/\/*@//d;  # remove shell aliased junk from ls
    open(F,$_);
    print eval{(lstat(F))[9]},"\n";
    close(F);    
}'

[download]

Mind you that this snippet is only one thing we tried. Also note that we realize that there are a plethora of other ways to do this so that it works. However, it is this one phenomena that we are curious about.

Some of the other things we tried were: 

$ls saveme | perl -n -e '
print "file is: ". <>,"\n";
'
file is: 

$ls saveme | perl -n -e '
my @files = <>;print "file: @files\n";
'
file:

[download]

What am I (are we) missing here? It has to be some fundamental rule I am forgetting/disregarding.

TIA

_ _ _ _ _ _ _ _ _ _
- Jim
Insert clever comment here...

In reply to Oddity...losing filename from stdin - very wierd by snafu

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