0
votes
2answers
133 views

How to redirect a part of stderr and stdout to /dev/null

My program outputs to stderr and stdout. I want to grep for "pattern" either in stderr and stdout. And I want the rest to be sent to /dev/null. If I pipe after redirect stderr : ./prog 2>/dev/null ...
3
votes
1answer
445 views

Why can I see password prompts through redirecting output?

So, I've got a command that I'm issuing that is essentially 'ssh'ing into various hosts: command 2&>1 | grep "desired output" Every once in a while, in the midst of the command, it'll run ...
1
vote
1answer
320 views

Redirecting to /dev/null and a file at the same time

I'm trying to execute the following command: find . -name ".[ch]" | xargs grep -in pattern > file There are some errors that are printed on stderr because a few files are not found. How can I ...
0
votes
0answers
696 views

STDOUT redirection to a file does not work if Groovy script run directly from command line (.groovy in PATHEXT)

I've updated the title, please see update below for the reason. I have asked this question on Stackoverflow, but still didn't receive an answer. Groovy: redirect stdout to a file does not work. ...
2
votes
1answer
820 views

Different output when redirecting

$ mysql -e 'select a,b from tablefoo' databasename yields +---+---+ | a | b | +---+---+ | 1 | 0 | | 2 | 1 | +---+---+ whereas $ mysql -e 'select a,b from tablefoo' databasename > file ...
11
votes
5answers
6k views

Log rotation of stdout?

I have a Linux program which can write information to stdout and stderr. I have a shell script which redirects that output to a file in /var/log. (Via >> and 2>&1.) Is there a way to ...
4
votes
2answers
3k views

Redirect 7-Zip's command-line output to /dev/null on Windows when extracting a .7z file

I have a command such as "C:\Program Files\7-zip\7z.exe" x foo.7z -y which will extract (with full paths) to the current directory. What it does that I don't want, though, is to spool out the ...
3
votes
1answer
1k views

copy (split?) stdout instead of redirecting it

In Bash, I'd like to redirect stdout to a file (>> mylog.txt) but also see the stdout output on the screen.. How can I do it with bash?