On Fri, 15 Mar 2019, 05:34 Todd Chester via perl6-users,
<perl6-us...@perl.org <mailto:perl6-us...@perl.org>> wrote:
On 3/14/19 10:05 PM, Todd Chester via perl6-users wrote:
> Hi All,
>
> What am I doing wrong here?
>
> ps ax | grep [f]irefox | perl6 -ne 'my @x =
$_.words[0].lines.reverse;
> print @x[0] ~ "\n";'
> 7380
> 7581
> 7698
> 13023
> 13767
> 13908
>
>
> Two problems:
>
> 1) "lines" is putting everything into @x[0]
>
> 2) "reverse" is ignoring me as there is no @x[1]. etc.
>
> The result I want is 13908
>
> Many thanks,
> -T
And why do I have a broken pipe here?
$ ps ax | grep [f]irefox | perl6 -ne 'say
$_.lines.sort.reverse.words[0];'
7380
7581
7698
13023
13767
22369
$ ps ax | grep [f]irefox | perl6 -ne 'say
$_.lines.sort.reverse.words[0];' | sort -r
Failed to write bytes to filehandle: Broken pipe
in block <unit> at -e line 1
On 3/14/19 10:53 PM, Simon Proctor wrote:
6am here and I'm not at a computer but I think your problem is trying to
use both -n which runs your code on each line of STDIN and lines.
Try one or the other see what happens.
Once I'm ambulant and at a computer I'll poke at it myself.
Thank you anyway.
$ ps ax | grep [f]irefox | perl6 -n 'my @x = $_.words[0].lines.reverse;
print @x[0] ~ "\n";'
Could not open my @x = $_.words[0].lines.reverse; print @x[0] ~ "\n";.
Failed to stat file: no such file or directory
$ ps ax | grep [f]irefox | perl6 -e 'my @x = $_.words[0].lines.reverse;
print @x[0] ~ "\n";'
No such method 'words' for invocant of type 'Any'
in block <unit> at -e line 1
