Shell Script: How to write a string to file and to stdout on console?

Question

How to write a string to file and to stdout on console?

If I do

echo "hello" > logfile.txt

I view only hello in logfile.txt but how can I write hello also on console of Linux?

Biffen · Accepted Answer · 2022-10-05T10:18:48.570

108

Use the tee command:

echo "hello" | tee logfile.txt

edited Oct 05 '22 at 10:18

answered Mar 28 '14 at 13:04

Biffen

17

You can also do `tee logfile.txt <<<"hello"` – augurar Aug 19 '14 at 17:48
11

Just FYI `echo` adds newline character to the output file. If you don't want it use `printf` command it only writes the string to file and will not append newline character – Dmitry Tokarev Oct 11 '17 at 18:56
1

Or you can use `echo -n` – skaldesh Oct 05 '22 at 08:59

SuperNova · Answer 2 · 2019-07-23T08:52:57.127

47

You can use >> to print in another file.

echo "hello" >> logfile.txt

edited Jul 23 '19 at 08:52

answered Sep 12 '18 at 09:28

SuperNova

2 Answers2