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I want to script these few lines

mkfifo my.fifo
cat >my.fifo &
cat my.fifo | nc remotehost.tld 10000

But the line

cat >my.fifo &

When i run it manually it works, but not through bash shell. what could be the reason for it?

migrated from serverfault.com Aug 25 '13 at 22:50

This question came from our site for system and network administrators.

  • 1
    what do you mean "when you run it through bash shell"? What shell are you using when you run it manually? Your question (as phrased) doesn't make sense... – voretaq7 Aug 21 '13 at 13:58
6

1) Create the first file

#!/bin/bash

mkfifo my.fifo
trap 'rm -f my.fifo' EXIT

cat  <my.fifo &
cat >my.fifo;
nc localhost 2345

2) From another terminal

cat >my.fifo
  • Added trap to remove the created file my.fifo once there pipe is closed. – Valentin Bajrami Aug 21 '13 at 14:26

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