tldr/pages/common/tee.md

tee

Read from standard input and write to standard output and files (or commands).

• Copy standard input to each FILE, and also to standard output:

echo "example" | tee {{FILE}}

• Append to the given FILEs, do not overwrite:

echo "example" | tee -a {{FILE}}

• Create a folder called "example", count the number of characters in "example" and write "example" to the terminal:

echo "example" | tee >(xargs mkdir) >(wc -c)