The best ping story I've ever heard

#1

Post by ozh » Fri, Jan 09, 2015, 8:16 AM UTC

The best ping story I've ever heard
askapache.com

Re: The best ping story I've ever heard

#2

Post by yuchi » Fri, Jan 09, 2015, 11:11 AM UTC

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

Re: The best ping story I've ever heard

#3

Post by caractacus » Fri, Jan 09, 2015, 11:24 AM UTC

http://bash.org/?5273

Surely most people reading this will know the quote linked without having to even click it.

Re: The best ping story I've ever heard

#4

Post by davidw » Fri, Jan 09, 2015, 11:27 AM UTC

This is a good one too, although not strictly ping related.

http://www.ibiblio.org/harris/500milemail.html

Re: The best ping story I've ever heard

#5

Post by sheepz » Fri, Jan 09, 2015, 11:37 AM UTC

yuchi wrote: post #2

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

ping goodhost | sed -l 's/.*/ping/' | while read line; do echo $line | say; done

Re: The best ping story I've ever heard

#6

Post by gpvos » Fri, Jan 09, 2015, 11:38 AM UTC

yuchi wrote: post #2

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

  cat input |while read a; do do_something_with $a; done

Re: The best ping story I've ever heard

#7

Post by n3t » Fri, Jan 09, 2015, 11:44 AM UTC

sheepz wrote: post #5

yuchi wrote: post #2

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

ping goodhost | sed -l 's/.*/ping/' | while read line; do echo $line | say; done

You might want to use "--unbuffered" flag in sed execution.

Re: The best ping story I've ever heard

#8

Post by petercooper » Fri, Jan 09, 2015, 11:45 AM UTC

sheepz wrote: post #5

yuchi wrote: post #2

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

ping goodhost | sed -l 's/.*/ping/' | while read line; do echo $line | say; done

Bit of a tangent, but using the voice "Tom" on OS X, saying "ping" says "pling" instead. Fine with other voices but rather curious.

Re: The best ping story I've ever heard

#9

Post by sheepz » Fri, Jan 09, 2015, 11:48 AM UTC

n3t wrote: post #7

sheepz wrote: post #5

Earlier quoted context omitted.

ping goodhost | sed -l 's/.*/ping/' | while read line; do echo $line | say; done

You might want to use "--unbuffered" flag in sed execution.

that option appears to be gnu-specific. -l should make it line-buffered

Re: The best ping story I've ever heard

#10

Post by kosma » Fri, Jan 09, 2015, 11:48 AM UTC

yuchi wrote: post #2

Do someone know how to run a command for every line emitted in a unix pipe? I tried the oneliner in the linked story using Mac OS X’s `say`, but it doesn’t work with pipes.

In a typical UNIX fashion, there's a program that runs programs:

  ping 127.0.0.1 | sed -e 's/.*/ping/' | xargs -d'\n' -n1 say