How do I redirect to standard output?
The regular output is sent to Standard Out (STDOUT) and the error messages are sent to Standard Error (STDERR). When you redirect console output using the > symbol, you are only redirecting STDOUT. In order to redirect STDERR, you have to specify 2> for the redirection symbol.
Which symbol is used for standard output redirection?
> symbol
The > symbol is known as the output redirection operator. Any command that outputs its results to the screen can have its output sent to a file.
Which command will redirect output to file?
To redirect the output of a command to a file, type the command, specify the > or the >> operator, and then provide the path to a file you want to the output redirected to. For example, the ls command lists the files and folders in the current directory.
How do I redirect std error?
Understanding the concept of redirections and file descriptors is very important when working on the command line. To redirect stderr and stdout , use the 2>&1 or &> constructs.
How do you redirect standard output and standard error to the same location?
2 Answers
- 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 standard output?
Standard output (stdout) Standard output is a stream to which a program writes its output data. The program requests data transfer with the write operation. Not all programs generate output.
What is Standard standard output input?
Typically this is the keyboard, but you can specify that input is to come from a serial port or a disk file, for example. The standard output device, also referred to as stdout , is the device to which output from the system is sent. Typically this is a display, but you can redirect output to a serial port or a file.
How do I redirect the output to a file and screen?
Redirecting output to a single file and screen: Before the “|” pipe symbol, you can type the command you want to execute and then combine the “|” with the tee command while specifying the file path. In our case, we will redirect the output to “samplefile” present in our home directory.