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?

Solution 1

Use the tee command:

echo "hello" | tee logfile.txt

Solution 2

You can use >> to print in another file.

echo "hello" >> logfile.txt

Comments

[augurar]

You can also do tee logfile.txt <<<"hello"

[Dmitry Tokarev]

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