How can i redirect command output in OS X to both console and file at the same time

Question

I need to basically see the output of a command which are logs that could run into 1000+ lines while at the same time send it to a file. please help.

score 4 · Accepted Answer · answered Oct 22 '15 at 20:34

4

Use the tee command:

mycommand | tee filename.txt

Will run mycommand saving standard output to filename.txt while also displaying it on the terminal.

answered Oct 22 '15 at 20:34

nimrodm

156

score -1 · Answer 2 · answered Oct 22 '15 at 18:55

-1

Instead of trying to duplicate the output (I/O is expensive!), how about writing to the file and opening a separate terminal and using tail -f <file>.log at the same time?

answered Oct 22 '15 at 18:55

kiminoa

101

How can i redirect command output in OS X to both console and file at the same time

2 Answers2