tee

tee command read from standard input and write to files and/or standard output.

• https://man7.org/linux/man-pages/man1/tee.1.html

tee file.txt
tee -a file.txt or tee --append file.txt

echo "deb https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-8.x.list

Related terms

• mkfifo
• sponge
• EOF

See also

• echo, print, printf, tput, logger, write-output, echo -e, /dev/stdout, banner
• tee, sponge, append, prepend, tee --append
• Append, prepend
• cat, tac, more, less, tail, mtail, echo, stdin, tr, column, paste, truncate, logrotate, xzcat pv, progress, sort, ncat, virt-cat, awk, join, col, fold, tee, sponge, nfs-cat, journalctl, ccat, icat, EOF, lolcat