Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

Re: -s switch in perl

by philipbailey (Chaplain)
on Jul 29, 2009 at 17:03 UTC ( #784294=note: print w/ replies, xml ) Need Help??

in reply to -s switch in perl

It is also worth mentioning that using -s in the manner shown is equivalent to:

if (-e /tmp/xyz && !-z /tmp/xyz) {}

i.e. it checks both that the file exists and has non-zero size, which can be useful.

Comment on Re: -s switch in perl
Download Code
Replies are listed 'Best First'.
Re^2: -s switch in perl
by graff (Chancellor) on Jul 30, 2009 at 05:22 UTC
    I think you meant to say:
    if ( -e "/tmp/xyz" && ! -z _ ) {}
    (quotes around file name, and use of "_" to re-use the most recent stat results, rather than using stat twice in a row on the same file).

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://784294]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (14)
As of 2015-10-08 17:35 GMT
Find Nodes?
    Voting Booth?

    Does Humor Belong in Programming?

    Results (222 votes), past polls