Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Re: Obtaining the output of a system call, not the return status

by wog (Curate)
on Feb 09, 2002 at 21:58 UTC ( #144406=note: print w/ replies, xml ) Need Help??


in reply to Obtaining the output of a system call, not the return status

You probably want to use backticks AKA qx:

my $html = `echo $plaintext | txt2html --extract`; # -- or -- my $html = qx(echo $plaintext | txt2html --extract); # where the ()s can be any seperator you can use on qw(), etc.
However, you might find it better to do this sort of thing with IPC::Open2, especially if $plaintext is going to contain stuff that you don't want to pass to the shell:
use IPC::Open2; my($read_fh,$write_fh); my $pid = open2($read_fh,$write_fh,"txt2html","--extract"); print $write_fh $plaintext; close $write_fh; my $html = do { local $/; <$read_fh> }; # or you can use a while(<$read_fh>) { ... } loop. waitpid $pid, 0; # don't leave "zombies"


Comment on Re: Obtaining the output of a system call, not the return status
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://144406]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (6)
As of 2015-07-05 19:48 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (67 votes), past polls