Question

I’ve looked but can’t find anything. A program for example, a TTS I use lets you do the following:

~#festival -tts | echo "I am to be spoken"

Which is really nice, but for programs I use such as hexdump, I don’t know how to pipe text into it. I can REALLY use some of these things, some examples I tried (but failed) are like so:

~#gtextpad < dmesg
      //(how do I put the contents into the text pad for display? not just into a file)
~#hexdump | echo "I am to be put into hexdump"
      //(How do I get hexdump to read the echo? It normally reads a file such as foo.txt..)

Answer 1

here are some ways to pass text to hexdump

Stdin:

echo "text" | hexdump

Here document

hexdump <<EOF
text
EOF

to process entire file

hexdump file