[SOLVED] I/O Redirection

Batistuta_g_2000 · 03-28-2013, 07:33 PM

Hi,

How do I append STDOUT to a logfile and display it also?

Thanks

haertig · 03-28-2013, 07:56 PM

cat file 2>&1 | tee output_file

2>&1 is optional ... only needed if you want to save stderr also

Obviously, "cat file" is just a contrived example - if the content is already in a file you obviously don't need to save it again into a different file.

shivaa · 03-28-2013, 10:56 PM

In order to 'append' stdout to a file you can either use:

Code:

~$ <command> >>/path/to/output
~$ cat /path/to/output

OR,

Code:

~$ <command> 2>/dev/null 1>>/path/to/output
~$ cat /path/to/output

For more details, check here.