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How do I redirect error to stdout?
To redirect stderr as well, you have a few choices:
- Redirect stdout to one file and stderr to another file: command > out 2>error.
- Redirect stdout to a file ( >out ), and then redirect stderr to stdout ( 2>&1 ): command >out 2>&1.
What is the command you use in Linux to run the process in the background?
How to Start a Linux Process or Command in Background. If a process is already in execution, such as the tar command example below, simply press Ctrl+Z to stop it then enter the command bg to continue with its execution in the background as a job.
What is background command in Unix?
In Unix, a background process executes independently of the shell, leaving the terminal free for other work. To run a process in the background, include an & (an ampersand) at the end of the command you use to run the job.
How to redirect strace from stdout to stderr?
It catches all streams, so you might want to filter that somehow: shows only descriptor 1 calls. 2>&1 is to redirect STDERR to STDOUT, as strace writes to STDERR by default. create the following two files in the same directory, something in your path, say $HOME/bin:
How to redirect output of an already running process?
Dupx is a simple *nix utility to redirect standard output/input/error of an already running process. You can use reredirect ( https://github.com/jerome-pouiller/reredirect/ ).
Why can I not see the output of background processes?
If you do not want to see any output on the screen, redirect both stdout and stderr to a file by: Usually you may want to discard the stderr by redirecting it to /dev/null if you are not worried about analyzing errors later. You can also even run commands/scripts at the same time, in separate sub-shells.
How to redirect GDB output to another terminal?
You could also redirect gdb’s output to /dev/null if you don’t want to see it. Redirect output from a running process to another terminal, file or screen: Detach a running process from bash terminal and keep it alive: