Korn Shell Programming by Example

tee

Official Description

Reads from standard input and writes to standard output and files.

Syntax

tee [-ai] file...
				

Options

-a appends output to file.

-i ignores INT signal.

Oddities

If one target file is unavailable, the output continues to the others.

Example

 $ ls -l b* -r-x-w-r-x 1 obrien obrien 47 Nov 26 12:19 buzz -rwxrwxr-- 1 obrien obrien 90 Nov 26 12:45 buzz1 -r-x-w-r-x 1 obrien users 47 Nov 27 13:31 buzz10 -rwxrwxr-- 1 obrien obrien 152 Nov 26 12:48 buzz2 -rwxrwxr-- 1 obrien obrien 116 Nov 26 14:07 buzz3 -rwxrwxr-- 1 obrien obrien 165 Nov 26 14:08 buzz4 $ $ ls -l b* > some_file # Can't see output when redirected $ $ ls -l b* | tee some_file # Pipe it to tee and it will do both # (redirect and display) -r-x-w-r-x 1 obrien obrien 47 ...