tee
<tool, operating system> A Unix command which copies its standard input
to its standard output (like cat) but also to a file given as its argument. tee
is thus useful in pipelines of Unix commands (see plumbing) where it allows you
to create a duplicate copy of the data stream. E.g.
egrep Unix Dictionary | tee /dev/tty | wc -l
searches for lines containing the string "Unix" in the file "Dictionary",
prints them to the terminal (/dev/tty) and counts
them.
Unix manual page: tee(1).
[Jargon File]
(1996-01-22)
Nearby terms:
Technology of Object-Oriented Languages and Systems
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